Raypak 185/207A/206A/R185A/R185B O-Ring Kit [Qty-2] (006713F) topsides and this Filbur FC-3746 cartridge

and this Filbur FC-3746 cartridge is designed for C-6622 and PC22 applications

5 kW Spa Heater Assembly is designed for compatible 240V spa systems using a 2 inch by 2 inch connection format where the original heater no longer feels dependable

Supports safer and more dependable heater operation

Made for compatible XP3 48/56 frame wet end applications

Raypak 185/207A/206A/R185A/R185B O-Ring Kit [Qty-2] (006713F) topsides and this Filbur FC-3746 cartridgeThe Raypak O ring kit is designed for compatible 185, 207A, 206A, R185A, and R185B heater applications where the supported sealing points need fresh O rings. An O ring is useful because it helps maintain leak protection between joined components, supporting cleaner reassembly and more dependable heater operation. This replacement is especially useful when the original seals are flattened, brittle, leaking, or being disturbed during service. A two