The 3" or 4" Z-Flex horizontal vent kit is for vertical installations of indoor water heaters using 3" fittings, such as the Eccotemp 40HI models.  Made of durable AL-294C stainless steel category II/III approved.  

Features

•1 x 3" Rain cap

•1 x 3" Top support/Storm collar

•1 x 3" Adjustable roof flashing

Note: You will need to purchase a universal appliance adapter with backflow preventer along with your desired length of straight pipe and any additional elbows.