AquaPro AL75 Pump Union Suction 1-1/2" (10065-ACC) hammerhead This cartridge has practical value

This cartridge has practical value because the multiple reference numbers help buyers and service technicians connect this filter to several common identification systems

Intermatic RC939 3-channel transmitter

Tank body O-ring with 18-7/8 inch ID and 5/16 inch cross-section

and SherLok 80 filter applications

and this Pool Tool Inc

AquaPro AL75 Pump Union Suction 1-1/2" (10065-ACC) hammerhead This cartridge has practical valueThe AquaPro AL75 suction side pump union is designed for compatible plumbing applications where a serviceable 1 1 2 inch connection is needed at the pump inlet. A union like this is useful because it helps create a removable joint that simplifies maintenance while still supporting a secure and dependable connection during operation. This replacement is especially useful when the original union is cracked, leaking, cross threaded, or no longer fitting