Does it come with the line sets? If so, how long?

Thank you for your question. The line sets for this system will have to be purchased separately. Compatible line sets for this system can be found in the accessory section on this product's page. The accessory section is located beneath the "add to cart" button. We have several sizes to choose from. There are 16', 25', 50' and 75' pre-charged line sets to choose from. You will need a pre-charged line set per indoor air handler. So, for this system you will require 3 line sets. For more assistance, please give us a call.