Raypak 266A/267A CuNi/Polymer Tube Bundle (010365F) coatesheater and this Balboa Retrofit Bezel

and this Balboa Retrofit Bezel E4 Topside Panel Adaptor is designed for compatible applications where the panel update needs a cleaner visible transition

the entire system can become harder to manage and maintain

This model is especially practical when the system was built around PacFab-style plumbing and you want to avoid unnecessary plumbing adjustments during repair

or no longer sealing confidently after disassembly

or the spa may simply stop feeling as predictable as it once did

Raypak 266A/267A CuNi/Polymer Tube Bundle (010365F) coatesheater and this Balboa Retrofit BezelThe Raypak CuNi and polymer tube bundle is designed for compatible 266A and 267A heater applications where the supported heat transfer assembly needs replacement. A tube bundle is useful because it forms one of the core internal heating sections of the heater, helping transfer heat into the water while matching the intended system configuration. This replacement is especially useful when the original bundle is leaking, scaled, corroded, or no longer