A&A Manufacturing Style II G2 Series Non-Venturi Internal Retro Cleaning Head | Black | 236704 C9494 When the O-ring degrades or

When the O-ring degrades or becomes deformed

The cord length is typically printed on the original part's label or listed in your ColorCascade installation manual

Before installing this O-ring

If your Nordic Hot Tub was built after this date

A&A Manufacturing Style II G2 Series Non-Venturi Internal Retro Cleaning Head | Black | 236704 C9494 When the O-ring degrades orOEM Replacement Retro Cleaning Head for A&A In Floor Cleaning Systems The A&A Manufacturing Style II G2 Series Non Venturi Internal Retro Cleaning Head (Part #236704) is the OEM replacement cleaning head for A&A in floor pool cleaning systems. This is the Black version confirm your existing head color before ordering. What It Does The retro cleaning head is the pop up nozzle component of an A&A in floor cleaning system. It rises under water pressure