Pentair 263042Z Check Valve Rebuild Kit for 2" & 2.5" CPVC Valves

The Pentair 263042Z Check Valve Rebuild Kit is the OEM replacement kit designed to restore full performance to Pentair 2-inch and 2.5-inch CPVC diverter check valves. Compatible with both 2-way and 3-way configurations, this kit includes everything you need to stop leaks and maintain proper one-directional water flow in your pool or spa plumbing system.

🚩 PRO TIP: Installation & Maintenance

Replace this kit at the first sign of backflow or leaking. To ensure the clear lid creates an airtight seal and to prevent the O-ring from pinching, apply a thin coat of Aladdin Magic Lube to the large lid O-ring before tightening the screws. This is a quick DIY repair that takes under 30 minutes and prevents pump cavitation.

PRODUCT FEATURES

• OEM Pentair replacement kit — guaranteed fit for Pentair 263042 check valves
• Compatible with 2-way and 3-way Pentair CPVC diverter valves
• Fits 2" Internal / 2.5" External Pentair CPVC check valves
• Includes clear lid, O-ring, flapper, and stainless steel screws
• CPVC construction for corrosion resistance and long service life
• Restores proper one-directional water flow and prevents backflow
• Easy DIY installation — no special tools required

TECHNICAL SPECIFICATIONS

• Part Number: 263042Z
• Brand: Pentair
• Fit Range: 2" – 2.5" Pentair CPVC check valves
• Compatible Valve: Pentair 263042 (2" 2-Way CPVC Check Valve)
• Valve Types: 2-Way and 3-Way Diverter Valves
• Material: CPVC
• Kit Contents: Clear lid, O-ring, flapper, stainless steel screws
• Weight: 0.25 lbs
• Note: Not compatible with Pentair FullFLO check valves 263060 or 263077

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