Pentair Diffuser 1F 1-1/2F 1-1/2A 2A | Challenger High Flow & SuperMax | 355077 C8399 housing the filtered water outlet

housing the filtered water outlet and providing the structural base to which the upper tank shell and clamp assembly connect

25 HP Pump w/ OmniX W3VSP32820 Position v1 #3 Compatibility is based on Hayward parts documentation and available OEM records

Hayward uses two related part numbers for this cartridge: CX875RE refers to a single replacement cartridge element

The oil-free

and Quad D

Pentair Diffuser 1F 1-1/2F 1-1/2A 2A | Challenger High Flow & SuperMax | 355077 C8399 housing the filtered water outletThe Pentair Diffuser (355077) is the OEM replacement diffuser for the Pentair Challenger High Flow and SuperMax pump series, sized for 1F, 11 2F, 11 2A, and 2A frame configurations. The diffuser channels water from the impeller into the pump's volute, converting rotational velocity into pressure to maintain consistent flow through your pool or spa circulation system. A cracked or worn diffuser causes pressure loss and reduced pump efficiency this