Raypak 406A/407A Outdoor Stack Assembly (009837) gaskets Pressure relief function

Pressure relief function

The 003900F is a practical service part when a compatible Raypak heater needs a natural-gas IID valve to restore dependable fuel-control performance

Useful when the original probe is inaccurate or failed

the whole electrical area can feel less organized and less dependable than it should

Helps direct returning water flow

Raypak 406A/407A Outdoor Stack Assembly (009837) gaskets Pressure relief functionThe Raypak outdoor stack assembly is designed for compatible 406A and 407A heater applications where the supported venting assembly for an outdoor installation needs replacement. An outdoor stack assembly is useful because it helps manage the intended exhaust transition and supports proper fit for the heaters external venting arrangement. This replacement is especially useful when the original stack assembly is dented, corroded, damaged, or