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Mitsubishi 18,000 BTU EX-Series 17.5 SEER2 Single Zone Wall Mounted Mini Split Heat Pump System – R454B | 230V

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Mitsubishi

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Model

SUZ-AA18NL / MSZ-EX18NLW

ID

199103

Was $4,553.44
Your Low Price $4,007.03
 
Product Features
  • 18,000 BTU For Up To 750 Sq Ft
  • Perfect For Up To 750 Sq Ft
  • 17.5 SEER2 For Lower Energy Costs
  • Reliable Year-Round Comfort
  • 10 years
  • Heating Down To -4°F And Cooling Up To -115°F
Customize Mitsubishi 18,000 BTU EX-Series 17.5 SEER2 Single Zone Wall Mounted Mini Split Heat Pump System – R454B | 230V
18,000 BTU Mitsubishi Single Zone Condenser - R454B
18,000 BTU Mitsubishi Single Zone Condenser - R454B   + $2,776.13
18,000 BTU Mitsubishi EX-Series White Wall Mount Mini Split Air Handler - R454B
18,000 BTU Mitsubishi EX-Series White Wall Mount Mini Split Air Handler - R454B   + $1,230.90
 15 feet - 1/4" and 1/2" Line Set & Control Wire
Equipment Pad and Risers Kit
Installation Kit for Condensers
Mitsubishi MHK2 Wireless Remote Controller
16,400 BTU Mitsubishi EX-Series Mini Split | SEER2 17.5 | Inverter | R454B

$4,007.03

Get Premium Comfort for up to 35% Less.

Efficient mini split heat pump system designed to deliver quiet year-round comfort for medium spaces with a clean wall-mounted design.

The Mitsubishi EX-Series 18,000 BTU single-zone mini split heat pump system provides reliable heating and cooling for medium spaces in homes, offices, retrofit applications, and new construction. With inverter-driven performance and a wall-mounted indoor unit, it offers dependable comfort, efficient operation, and a modern low-profile look.

Mitsubishi EX-Series Single Zone Features and Benefits

  • 17.5 SEER2 Efficiency – Helps reduce energy use while supporting dependable comfort.
  • Year-Round Comfort – Delivers both heating and cooling in one system.
  • Wall-Mounted Design – Saves floor space with a sleek, modern appearance.
  • Quiet Operation – Helps maintain a comfortable environment in everyday spaces.
  • Medium Space Coverage – Designed for areas up to about 800 sq. ft., depending on conditions.
  • R454B Refrigerant – Uses a lower-GWP refrigerant for a more eco-conscious footprint.

Quiet Operation

Both indoor and outdoor components are designed for low-noise performance, making this system a strong fit for bedrooms, offices, and other spaces where quieter operation matters.

Compact Wall-Mounted Design

The indoor unit offers a clean, modern look while saving valuable floor space and blending into a wide range of room styles.

Right-Sized Performance

With 18,000 BTU of capacity, this system is a practical choice for medium-sized spaces that need efficient and reliable climate control.

What's Included

  • Mitsubishi Single Zone Mini Split Heat Pump Condenser — SUZ-AA18NL
  • Mitsubishi 18,000 BTU Mini Split Air Handler — MSZ-EX18NLW
  • Wireless remote control
  • Owner's Manual, Guides, and Other Documents

Recommended Accessories

  • 21" Wall Mount Bracket for Mini Split Systems – 230-B2L
  • Mitsubishi Wireless Remote Controller – MHK2
  • E Lite Equipment Pad and Risers Kit – 87762 / EL1838-3
  • Installation Kit – MSK001
  • • 3/4"" x 6' Electrical Whip – SKU: 84138 • 60A Non-Fused Disconnect – SKU: 83335 • Surge Protector – SKU: ICM517 • CPS Charging Adapter – SKU: 87-AD87 • Telescoping Wall Sleeve – SKU: NFP-75
  • Additional line set options
  • • 15 ft – 201814 / CW-144-15 • 25 ft – 366400 / CW-144-25 • 30 ft – 216741 / CW-144-30 • 35 ft – 366401 / CW-144-35 • 50 ft – 366402 / CW-144-50

Warranty

10-year limited warranty with online registration.

18,000 BTU Mitsubishi Single Zone Condenser - R454B

Create efficient heating and cooling with a outdoor condenser designed to simplify climate upgrades.

Upgrade your comfort with the Mitsubishi SUZ-AA18NL Outdoor Condenser—an inverter-driven outdoor unit designed to deliver efficient heating and cooling for single-zone systems. Built for residential and light commercial applications that demand dependable performance, quiet operation, and easier installation, this condenser pairs effortlessly with a compatible Mitsubishi indoor unit for reliable, year-round comfort.

Key Features

  • Designed for Heating and Cooling — Delivers dependable comfort for medium single-zone spaces.
  • Inverter-Driven Performance — Helps maintain consistent temperatures while optimizing energy use.
  • Quiet Outdoor Operation — Engineered for low-noise performance to help preserve a comfortable environment.
  • Built for Durability — Features a corrosion-resistant outdoor coil coating for added protection in challenging environments.

Warranty

Mitsubishi offers a limited warranty of 10-Year Compressor / 10-Year Parts Warranty when installed according to manufacturer guidelines and registered properly.

18,000 BTU Mitsubishi EX-Series White Wall Mount Mini Split Air Handler - R454B

Enjoy efficient, quiet comfort with the Mitsubishi Electric MSZ-EX18NLW wall-mounted indoor unit.

Transform the comfort of your space with the Mitsubishi Electric MSZ-EX18NLW Wall-Mounted Mini Split Indoor Unit. Designed to deliver reliable heating and cooling for larger rooms, this indoor unit combines a sleek wall-mounted design with quiet performance for living rooms, bedrooms, home offices, and other everyday spaces.

Key Features

  • Efficient Year-Round Comfort — When paired with a compatible Mitsubishi condenser, it helps provide dependable heating and cooling while supporting efficient energy use.
  • Right-Sized Comfort for Larger Spaces — The 18,000 BTU capacity is well suited for bigger bedrooms, living areas, and other residential spaces.
  • Ultra-Quiet Operation — Helps create a comfortable environment with low-noise performance.
  • Advanced Filtration — Helps reduce airborne particles and odors for cleaner indoor air.

Warranty

10-year limited parts warranty with online registration.

Installation Kit for Condensers

Ensure a professional and secure installation for your condenser with this comprehensive installation kit. Designed to provide all the essential components needed for a smooth setup, this kit helps protect your system while ensuring proper electrical and refrigerant connections.

What’s Included:

  • 3/4" x 6' Electrical Whip – SKU: 84138
  • 60A Non-Fused Disconnect – SKU: 83335
  • Surge Protector – SKU: ICM517
  • CPS Charging Adapter – SKU: 87-AD87
  • Telescoping Wall Sleeve – SKU: NFP-75

Equip your condenser with everything needed for a safe, durable, and professional installation. Order your Condenser Installation Kit today!

15 feet - 1/4" and 1/2" Line Set & Control Wire

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 15-foot refrigerant line set with 1/4" liquid line and 1/2" suction line featuring durable flared ends for secure connections, along with a matching 15-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 15 ft. insulated refrigerant line set
  • 15 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 1/2" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
Mitsubishi MHK2 Wireless Remote Controller

The Mitsubishi MHK2 is the second revision of Mitsubishi's most popular wireless controller set, now available for M & P Series residential and light commercial units. This controller offers in-depth 7-day scheduling and an easy to read, backlit display.

The updated MHK2 can now be used in tandem with the Kumo Cloud wi-fi adapter, sold separately. No longer do you have to choose between internet and wireless control: you can use both!

The MRCH2 is the main body of the thermostat. This can be placed anywhere within 200 feet of the indoor unit and does not require line of sight. The ;MRC2 cable will connect to the CN105 connector on the indoor unit's control board. The other end of this cable will connect to the MIFH2 receiver. The MIFH2 should be placed on the right side of a wall mounted unit, in the pocket of a MLZ-KP cassette, or anywhere near the control side of a ducted or square cassette unit.

Features:

  • Includes MRCH2 thermostat, MIFH2 wireless receiver, and MRC2 cable
  • Backlit display
  • Can sense temperature at indoor unit (default) or at controller
  • Fahrenheit °F / Celsius °C
  • No batteries required
  • Single zone compatible
  • Multi zone compatible
  • English, French, Spanish

Compatible Indoor Units:

Wall Mounted

  • GL Series: MSZ-GL06NA-U1, MSZ-GL09NA-U1, MSZ-GL12NA-U1, MSZ-GL15NA-U1, MSZ-GL18NA-U1, MSZ-GL24NA-U1, MSY-GL09NA-U1, MSY-GL12NA-U1, MSY-GL15NA-U1, MSY-GL18NA-U1, MSY-GL24NA-U1
  • FH Series: MSZ-FH06NA, MSZ-FH09NA, MSZ-FH12NA, MSZ-FH15NA, MSZ-FH18NA2
  • EF Series: MSZ-EF09NAB-U1, MSZ-EF09NAS-U1, MSZ-EF09NAW-U1, MSZ-EF12NAB-U1, MSZ-EF12NAS-U1, MSZ-EF12NAW-U1, MSZ-EF15NAB-U1, MSZ-EF15NAS-U1, MSZ-EF15NAW-U1, MSZ-EF18NAB-U1, MSZ-EF18NAS-U1, MSZ-EF18NAW-U1
  • JP Series: MSZ-JP09WA-U1, MSZ-JP12WA-U1
  • WR Series: MSZ-WR09NA-U1, MSZ-WR12NA-U1, MSZ-WR18NA-U1, MSZ-WR24NA-U1
  • D Series: MSZ-D30NA-8, MSZ-D36NA-8, MSY-D30NA-8, MSY-D36NA-8
  • P Series: PKA-A12HA7, PKA-A18HA7,PKA-A24KA7, PKA-A30KA7, PKA-A36KA7

Ducted

  • KD Series: SEZ-KD09NA4R1.TH, SEZ-KD12NA4R1.TH, SEZ-KD15NA4R1.TH, SEZ-KD18NA4R1.TH
  • P Series: PEAD-A09AA7, PEAD-A12AA7, PEAD-A15AA7, PEAD-A18AA7, PEAD-A24AA7, PEAD-A30AA7, PEAD-A36AA7, PEAD-A42AA7

Ceiling Cassette

  • KF Series: SLZ-KF09NA, SLZ-KF12NA, SLZ-KF15NA, SLZ-KF18NA
  • KP Series: MLZ-KP09NA, MLZ-KP12NA, MLZ-KP18NA
  • P Series: PLA-A12EA7, PLA-A18EA7, PLA-A24EA7, PLA-A30EA7, PLA-A36EA7, PLA-A42EA7

Floor Mounted

  • MFZ-KJ09NA-U1, MFZ-KJ12NA-U1, MFZ-KJ15NA-U1, MFZ-KJ18NA-U1

Multi Position Air Handler

  • KP: SVZ-KP12NA, SVZ-KP18NA, SVZ-KP24NA, SVZ-KP30NA, SVZ-KP36NA
  • P Series: PVA-A12AA7, PVA-A18AA7, PVA-A24AA7, PVA-A30AA7, PVA-A36AA7, PVA-A42AA7

Ceiling Suspended

  • P Series: PCA-A24KA7, PCA-A30KA7, PCA-A36KA7, PCA-A42KA7
25 feet - 1/4" and 1/2" Line Set & Control Wire

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 25-foot refrigerant line set with 1/4" liquid line and 1/2" suction line featuring durable flared ends for secure connections, along with a matching 15-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 25 ft. insulated refrigerant line set
  • 25 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 1/2" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
Equipment Pad and Risers Kit

E Lite Condenser Pad and Risers

E Lite Condenser Pad

E Lite Condenser Pad is designed to provide solid support for air conditioning condensers. It's made from sturdy polypropylene, striking a balance between lightness and stability. Its robust design ensures a level ground without the need for extra components.

Key Features:

  • Reliable Support: Abundance of ridges for stable ground support.
  • Durable and Lightweight: Tough yet not excessively heavy, thanks to polypropylene construction.
  • Anti-Slip: The surface prevents slipping, and rounded edges enhance safety.
  • Simple Appearance: Gray color with size labels.
  • Versatile Use: Suitable for condensers, pipes, ducts, cables, and more.

E Lite Risers

E Lite Risers complement the Condenser Pad, allowing you to adjust your setup as needed. They are constructed from weather-resistant PVC for outdoor use.

Key Features:

  • Weather Resistance: Made from tough PVC for long-lasting performance.
  • Secure Setup: The track securely holds bolts in place.
  • Bolts Included: Each set comes with two bolts.
  • Strong Support: Capable of handling loads of up to 397 pounds.

E Lite Condenser Pad and Risers offer reliable support without any complications. They are built to last and deliver efficient performance. Consider E Lite for your support needs – it's a practical solution for your projects.

No Return Policy

All sales of this product are final and are non-refundable.

30 feet - 1/4" and 1/2" Line Set & Control Wire

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 30-foot refrigerant line set with 1/4" liquid line and 1/2" suction line featuring durable flared ends for secure connections, along with a matching 30-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 30 ft. insulated refrigerant line set
  • 30 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 1/2" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
21" Wall Mount Bracket

This wall mount bracket is perfect for outdoor mini split condensers. The length of the the wall bracket arms are 21" long. The condensing unit is mounted onto the L-shaped brackets and fastened using the bolts and anti-vibration washers provided.

Features:

  • 21" Arm Length
  • Weight capacity of 220 lbs per arm
  • Bolts and anti-vibration washers included

No Return Policy

All sales of this product are final and are non-refundable.

35 feet - 1/4" and 1/2" Line Set & Control Wire

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 35-foot refrigerant line set with 1/4" liquid line and 1/2" suction line featuring durable flared ends for secure connections, along with a matching 35-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 35 ft. insulated refrigerant line set
  • 35 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 1/2" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
50 feet - 1/4" and 1/2" Line Set & Control Wire

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 50-foot refrigerant line set with 1/4" liquid line and 1/2" suction line featuring durable flared ends for secure connections, along with a matching 50-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 50 ft. insulated refrigerant line set
  • 50 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 1/2" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
More Information
Mitsubishi 18,000 BTU SEZ-AD-Series Single Zone Mini Split Heat Pump Condenser R454B | 230V
FeatureSpec
SKUSUZ-AA18NL
Refrigerant Charge3 lbs (Pre-charged for 25ft line set)
Weight (in lbs)115
Brand/ManufacturerMitsubishi
ReplacesSUZ-KA18NA2.TH
UPC605468317082
Cooling BTU18,000 BTU
Heating BTU20,000 BTU
Decibel Level (dBA)55 dBA
Electric HeatHeat Pump
Energy StarYes
RefrigerantR454B
HSPF210.3
SEER2 (Efficiency)17.2
EER212.4
Liquid Line1/4"
Suction Line1/2"
Electrical230V | 1 Phase | 60Hz
Max Breaker Size42 Amps
Min. Breaker Size25 Amps
BTU/Tonnage18,000 BTU/1.5 Ton
Min/Max Outdoor Temp for Heating−4 °F - 75 °F
Min/Max Outdoor Temp for Cooling14 °F - 115 °F
Zone CompatibilitySingle Zone
Ambient Temperature Range14 °F - 115 °F
Height34.63"
Width33.06"
Depth13"
Warranty10 Years with Online Registration
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Mitsubishi 18,000 BTU EX-Series White Single or Multi Zone Wall Mounted Mini Split Air Handler R454B | 230V
FeatureSpec
SKUMSZ-EX18NLW
Weight (in lbs)26
Brand/ManufacturerMitsubishi
ReplacesMSZ-EF18NAW-U2
UPC605468423929
ControllerIncluded
Cooling BTU17,200 BTU
Heating BTU21,600 BTU
Maximum CFM408 Turbo / 343 Hi / 288 Med / 248 Lo / 208 Quiet
Decibel Level (dBA)30-49 dBA
RefrigerantR454B
Liquid Line1/4"
Suction Line1/2"
Electrical208/230V | 1 Phase | 60Hz
BTU/Tonnage18,000 BTU/1.5 Ton
Mini Split TypeWall Mounted
Zone CompatibilitySingle Zone
Height11.75"
Width34.81"
Depth7.69"
Warranty10 Year Compressor / 7 Years Parts Warranty with Online Registration
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Installation Kit for Condensers - Accessory Set
FeatureSpec
SKUMSK001
Weight (in lbs)15
Brand/ManufacturerOnline Supply
UPCna
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
E Lite Equipment Pad and Risers Kit 18" x 38" x 3"
FeatureSpec
SKU87762 / EL1838-3
Weight (in lbs)25
Brand/ManufacturerOnline Supply
UPCna
Height3"
Width18"
Depth38"
Safety InformationPROPOSITION 65 WARNING
21" Wall Mount Bracket for Mini Split Systems
FeatureSpec
SKU230-B2L
Weight (in lbs)9.2
Brand/ManufacturerOnline Supply
UPC0095247127436
Length40"
Height3"
Width6"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 1/2" Line Ends & Control Wire - 50 feet
FeatureSpec
SKU366402 / CW-144-50
Weight (in lbs)45
Brand/ManufacturerOnline Supply
UPCna
Length50'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 1/2" Line Ends & Control Wire - 35 feet
FeatureSpec
SKU366401 / CW-144-35
Weight (in lbs)35
Brand/ManufacturerOnline Supply
UPCna
Length15'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 1/2" Line Ends & Control Wire - 30 feet
FeatureSpec
SKU216741 / CW-144-30
Weight (in lbs)30
Brand/ManufacturerOnline Supply
UPCna
Length30'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 1/2" Line Ends & Control Wire - 25 feet
FeatureSpec
SKU366400 / CW-144-25
Weight (in lbs)25
Brand/ManufacturerOnline Supply
UPCna
Length25'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 1/2" Line Ends & Control Wire - 15 feet
FeatureSpec
SKU201814 / CW-144-15
Weight (in lbs)15
Brand/ManufacturerOnline Supply
UPCna
Length15'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Mitsubishi MHK2 Wireless Remote Controller
FeatureSpec
SKUMHK2
Weight (in lbs)2
Brand/ManufacturerMitsubishi
ReplacesMHK3
UPC85267267533
LengthCable:39-23/64"
HeightThermostat: 4-5/64” | Receiver: 3-3/32”
WidthThermostat: 4-5/64” | Receiver: 1-3/4”
DepthThermostat: 1-1/16" | Receiver: 39/64”
Warranty5 Years Parts Warranty
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Top reviews
  1. Excellent.
    Quality
    100%
    Service
    100%
    Price
    80%
    The purchase was flawless. Everything was as described. The freight company (Dayton Freight) was outstanding. So far the unit is working great.

    Review by

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Why Choose Mitsubishi Mini Splits?
Why Choose Mitsubishi Mini Splits?

Mitsubishi mini split air conditioners and heat pumps provide exceptional comfort, energy efficiency, and ultra-quiet performance in any climate. Engineered for reliability and precision, these systems offer year-round heating and cooling while reducing energy costs and enhancing indoor air quality.

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