2" union- FITS HIGH -Temp unions- that screw into pumps.

Pentair Master-Temp Union 3 1/8"

Pentair superflo pump PSFP-157

Praher 2" Ball Valve coupler

Fits Pentair and Hayward Salt Cells and some hot tub pumps.

H-3200- Newer Hayward Equip.

Jandy - 9000

2" Jandy caretaker.

Auto-Pilot AP-1

H-200 coupler - Replaces Haywards older 200 Backwash Valves.

Pentair Backwash Valve- and Clean & Clear Cartridege Filters.