Virtually everything you need to complete your EnviroComfort installation. To select, match Btu capacity of the installation kit to the Btu output of your EnviroComfort Retrofit/Compressor Kit. Kits include appropriately-sized seawater pump, stainless steel hose clamps, bronze seawater strainer with speed scoop inlet, overboard discharge, bronze ball valves, 12 1/2' of A/C duct, 25' of 5/8"ID rubber hose, supply and return grilles, PVC plumbing fittings and electrical terminal connectors. Wiring sold separately.