Generic Pump O-Ring Kit, Super II 3000 Series [w/ Seal] (90-538-2002) wyes This Square Style 1 O-Ring

This Square Style 1 O-Ring [2-3/16" ID] (236950) is engineered for o-rings applications

Designed for motor parts service applications

The FDXLHLI1930 is a practical replacement for compatible Hayward heaters that need renewed rear-header integrity and cleaner hi-limit support

and this Maytronics version is designed for M4 and M5 applications and supplied in a quantity of four using the 9991433-R4 reference

Generic Pump O-Ring Kit, Super II 3000 Series [w/ Seal] (90-538-2002) wyes This Square Style 1 O-RingThe Generic 90 538 2002 pump O ring kit is designed as a compatible Super II 3000 Series replacement and includes the seal. A kit like this is useful because it helps restore multiple sealing points within the pump during one service interval, making maintenance more efficient and more complete. Pump rebuild work often benefits from replacing both the main seal and associated O rings together, especially when the assembly has already been opened up