Pentair 1.5″ Hi-Flow Valve Diffuser | 271163 Complete Water Valves 6 Port You can confirm this by

You can confirm this by checking the valves run time which should only be about 30 seconds

If your existing clamp assembly is missing the knob or has lost tension

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Jandy OneTouch Control Panel PCB Subassembly w/ White Buttons and LCD || R0550700

Pentair 1.5″ Hi-Flow Valve Diffuser | 271163 Complete Water Valves 6 Port You can confirm this byPentair 1. 5 Hi Flow Valve Diffuser 271163 Genuine Pentair 1. 5 Hi Flow valve diffuser (SKU 271163) for PACFAB multiport valves restores proper flow distribution and performance. Features OEM replacement diffuser for 1. 5 Hi Flow multiport valves. Promotes even water distribution for efficient valve function. Resin construction resists pool chemicals and mechanical wear. Lightweight design (~0. 34 lb) for simple installation. Compatible with valve