15x21 Water to Air Heat Exchanger~~1" Copper Ports w/ EZ Install Front Flange

15x21 /126,000 BTUs / 100 PSI For use in your hot air furnace plenum. ***Not recommended for air compressors***  Information about our heat exchangers This heat exchanger is ideal for a 15"x 22" plenum or larger. The outlets come out on the 15" side (shown as the vertical side in the picture above) GPM 13.1 CFM 1537 Outside Dimensions 15”(width)x24.5”(Length from Manifold to Base)x3.5”(Thickness) The fin area is 15"x 21" There is a 1" frame on the end opposite the outlets that covers the copper elbows. This makes the area inside of your plenum 1" longer. All exchangers are 3 1/2" thick. Aluminum fins are installed at 12 fines per inch. All exchangers are triple pass design. Tubing is 1/4" copper. All our exchangers include the flat front face mounting for easier installation and increased plenum strength.  Our exchangers have 1" copper outlets and can be installed with either sweat fittings or push fit type fittings like sharkbite's. Exchangers from us come with a lifetime warranty