Raypak 010388F – Refractory Retainer Kit – 266A HeaterIf the refractory blocks inside the 266A combustion chamber are loose, shifting, or no longer staying seated correctly, the retainer hardware may be the actual problem. Even good refractory material will not do its job if the retaining components are bent, missing, or weakened by heat exposure.This refractory retainer kit holds the refractory components in place inside the combustion chamber on the Raypak 266A heater. When the retainers fail, the refractory can move out of position, reducing heat containment and exposing nearby metal surfaces to excess stress. Replacing the kit restores the hardware that keeps the chamber insulation properly supported. Refractory sections are loose or shifting in the chamber Retainer hardware is bent, worn, or missing Combustion chamber rebuild requires correct retaining components Need to fix a Raypak heater with refractory support issues What this part does: It secures the refractory components so they stay positioned correctly inside the combustion chamber.Compatibility: Designed for the Raypak 266A heater. Confirm with your model number before ordering. Part Number: 010388F Type: Refractory retainer kit Application: 266A heater OEM Value: A genuine Raypak retainer kit helps keep the refractory assembly aligned the way the chamber was designed. Small retaining parts matter because loose refractory quickly turns into larger combustion chamber wear.Need help confirming compatibility? Contact us ?Shop all Raypak parts ?