OE Replacement Part #420020007S + 472610Z — directfit replacement for Pentair MasterTemp NA and LP Series and StaRite MaxETherm NA and LP Series. Key benefits Restores factory performance: Designed as an OE replacement to match the original part's fit and function so your heater operates as intended. Minimizes downtime and cost: only the failed component instead of the entire heating unit. Reliable compatibility: Matches the part numbers used on Pentair and StaRite models listed below, reducing guesswork when ordering. What it does and why you need it Replaces worn, damaged, or failed original components to restore heating reliability and prevent cascading failures. Solves common needs during seasonal service or after component failure, helping maintain consistent pool/spa temperature and safe operation. Maintains original equipment form, fit, and function so installation is straightforward and predictable. Important attributes Function: OE replacement component intended for Pentair MasterTemp and StaRite MaxETherm heater families (NA and LP series). Compatibility: Confirmed replacements for Pentair/StaRite models including Mastertemp 400, Mastertemp 300, Mastertemp 250, Mastertemp 200, SR200NA, SR333NA, SR400NA, SR200HD, SR333HD, SR400HD, and part number 460805. Identification: Supplied as part numbers 420020007S + 472610Z to match factory references. Fit and performance: Manufactured to match original specifications so the part integrates with existing heater components without modification. Practical use scenarios Routine maintenance: this part during yearly heater service to ensure continued, reliable operation of a Pentair MasterTemp or StaRite MaxETherm heater. Emergency : Swap in this OE replacement to quickly restore heating after a failed component, avoiding extended pool downtime. Componentlevel refurbishment: Use when repairing or refurbishing a heater to it to original operating condition without replacing the entire unit. Installation notes Designed for direct replacement; installation should follow the heater manufacturer's service instructions. Verify model and serial numbers against the compatibility list and part numbers (420020007S + 472610Z) before . Professional installation recommended for safe, codecompliant service. Contains OE Replacement Part #420020007S + 472610Z compatible with the Pentair MasterTemp NA and LP Series and StaRite MaxETherm NA and LP Series, and the specific models listed above.