Raypak R405A/R405B Uncommon Refractory Kit (005286F) divertorvalves Useful when the original assembly

Useful when the original assembly is leaking or incomplete

Replacing the volute back is often the right step when the rest of the pump remains serviceable and the structural weakness is isolated to the rear housing support

Correct fit matters in control-system parts because a cover should sit naturally and feel like part of the original equipment layout

Balboa’s commitment to quality manufacturing ensures resistance to heat

the whole setup can feel less convenient because recurring operation has to be handled manually instead of automatically

Raypak R405A/R405B Uncommon Refractory Kit (005286F) divertorvalves Useful when the original assemblyThe Raypak uncommon refractory kit is designed for compatible R405A and R405B heater applications where the supported refractory components in a specific uncommon configuration need replacement. A refractory kit is useful because it helps protect the burner area from heat exposure while supporting the intended combustion environment inside the heater. This replacement is especially useful when the original refractory material is cracked, crumbling,