Pentair Diffuser Screw | 356996Z

OEM Diffuser Screw for Pentair Pool Pumps The Pentair Diffuser Screw (356996Z) is the OEM replacement fastener for the diffuser assembly in compatible Pentair pool pumps. When a diffuser screw strips, corrodes, or breaks during routine service, this is the correct replacement to restore a secure, properly sealed diffuser fit. What It Does The diffuser screw secures the diffuser to the pump housing, maintaining the hydraulic seal that directs water flow through the impeller. A missing or damaged screw can allow the diffuser to shift, reducing pump efficiency and potentially causing vibration or cavitation. Replace with the OEM part to ensure correct thread engagement and material compatibility with the pump housing. Specifications Pentair Part Number 356996Z Also Known As C1-271P Part Type Diffuser Screw Quantity Included Each Pro Tip Match the part number stamped or molded on your existing screw — or reference the part number in your pump's exploded diagram — before ordering. Diffuser screws vary by pump model and housing configuration. If your equipment manual lists C1-271P as the diffuser screw reference, 356996Z is the correct current Pentair part number for that application.