Raypak Heater Return Header For 206A-406A | 006707FThe Raypak 006707F Return Header is an OEM replacement assembly designed for RP2100 heaters, covering models 206A, 266A, 336A, 406A, and related Low NOx, Versa II, and Millivolt versions. Manufactured from durable Capron polymer and supplied with a gasket, this part seals the return side of the heat exchanger to maintain proper water flow and prevent leaks. A worn or damaged header can reduce efficiency and compromise safety features. Installing this