Z-Flex 4" to 5" Eccentric Increaser Single Wall 4" Diameter

The Z-Flex 4" to 5" Eccentric Increaser Single Wall 2SVSIE0405 is a high-quality venting component designed to transition from a 4-inch to a 5-inch vent pipe. Made from durable stainless steel, this increaser is ideal for use with high-efficiency gas appliances such as tankless water heaters and boilers. Its eccentric design allows for a smooth flow of exhaust gases, reducing back pressure and improving overall system performance. This increaser is UL listed (UL1738/S636) and is recommended for vertical vent runs, ensuring safe and efficient venting. Easy to install, it provides a reliable solution for your venting needs.