Carvin MD Series White Main Drain Retaining Ring (43-1129-03-RWHT) mpindustries The kit format gives this

The kit format gives this part practical value because it pairs two related gate functions in one matched package rather than requiring separate part sourcing

When a spa heater begins to struggle

and 183A IID heater applications where the supported pilot fuel-delivery opening needs replacement

Helps restore a clean and serviceable branch connection

Nidec and US Motors spa motors are a reliable choice for restoring compatible systems to proper operation

Carvin MD Series White Main Drain Retaining Ring (43-1129-03-RWHT) mpindustries The kit format gives thisThe Carvin MD Series retaining ring is designed for compatible main drain applications where the cover or related drain component needs dependable retention. A retaining ring is useful because it helps hold the assembly together securely, supporting cleaner fitment and a more complete installed condition. This white replacement is especially useful when the original ring is cracked, warped, damaged, or missing. Installing the correct retaining ring