Raypak Tube Bundle Copper Heat Exchanger, Fits 155B/C, 004896F
004896F Tube Bundle Assembly For Heat Exchanger Used On Raypak Versa 155B/C Heaters, made after 1991. For 155A, made from 1987-1991, see part number 002439F. 004896F Can also be found on Repack Versa Parts Pages. Raypak recommends inspecting bypass assembly and replacing Unitherm Governor at the same time as a Tube Bundle replacement.