American Granby SCH 40 PVC Slip Cap 2½"

When a larger-diameter pool plumbing line needs to be permanently sealed, the cap must be pressure-rated, chemically resistant, and dimensionally accurate to prevent future failures. The American Granby Schedule 40 2 1/2” PVC Cap (Slip) is a professional-grade fitting designed to securely cap the end of a 2 1/2” Schedule 40 PVC pipe using a solvent-weld connection intended for permanent pool and spa installations.

This cap is manufactured specifically for pool and spa plumbing systems, where capped lines may remain pressurized, buried, or exposed to chlorinated water and outdoor conditions. It is commonly used during repairs, system modifications, pressure testing, and new construction when a larger plumbing line must be closed cleanly and permanently.

This is not a temporary plug—it is a true Schedule 40 pool-grade PVC cap.

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Why PVC Caps Are Used in Pool Plumbing

Larger pool plumbing systems often include unused branches, abandoned runs, or future expansion points that must be sealed reliably. Improper capping at larger diameters can result in hidden leaks, pressure loss, or structural failure over time.

The American Granby 2 1/2” PVC slip cap is used to:

• Permanently cap unused suction or return lines

• Seal abandoned or rerouted plumbing runs

• Close off plumbing during equipment upgrades

• Terminate plumbing during remodels or replumbing

• Prepare large-diameter systems for pressure testing

A properly solvent-welded cap ensures a long-lasting, leak-free seal.

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Slip Cap Design Explained

This fitting features a Slip (socket) connection, allowing it to solvent-weld directly over the outside of a 2 1/2” Schedule 40 PVC pipe.

Once installed with primer and cement, the cap becomes a permanent part of the plumbing system and provides:

• Full pressure-rated performance

• No threaded leak points

• Long-term durability in demanding pool environments

Slip caps are preferred in pool plumbing because they eliminate the risk of thread damage, loosening, or gasket failure.

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Schedule 40 PVC Built for Pool & Spa Systems

Manufactured from rigid Schedule 40 PVC, this cap is pressure-rated for residential and light commercial pool systems. It is fully compatible with standard 2 1/2” Schedule 40 PVC pipe used in high-flow pool circulation systems.

The material resists:

• Chlorinated and chemically treated water

• UV exposure and temperature fluctuations

• Cracking and deformation under pressure

• Long-term outdoor and underground conditions

This ensures dependable performance even at larger pipe diameters.

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Common Pool & Spa Applications

The American Granby SCH 40 2 1/2” PVC Cap Slip is commonly used for:

• Capping unused main suction or return lines

• Sealing auxiliary or bypass plumbing

• Equipment pad modifications

• Plumbing reroutes and system upgrades

• Pressure testing of larger-diameter plumbing

Anywhere a 2 1/2” PVC line must be permanently closed, this cap is the correct solution.

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Trusted by Pool Service Professionals

Larger pipe caps are often installed underground or behind equipment where access is limited. Pool professionals rely on American Granby caps for consistent sizing, strong solvent-weld joints, and long-term reliability.

American Granby fittings are trusted because they provide:

• Accurate socket dimensions

• Strong bonding surfaces for solvent welding

• Proven durability in real-world pool environments

This cap is a standard component used in professional pool plumbing installations.

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Specifications

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Installation Notes

• Designed for use with 2 1/2” Schedule 40 PVC pipe

• Clean and dry pipe end before installation

• Use approved PVC primer and cement

• Push cap fully onto pipe for proper seating

• Allow full cure time before pressurizing

Proper installation ensures a permanent, leak-free seal.

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Buy with Confidence from Benchmark Pool Supply

When you purchase the American Granby SCH 40 2 1/2” PVC Cap Slip from Benchmark Pool Supply, you’re buying professional-grade pool plumbing components selected for real-world service conditions.

You receive:

• Genuine American Granby fittings

• Parts intended specifically for pool and spa systems

• Fast shipping from a knowledgeable pool supply team

• Support from professionals who understand pool plumbing

This is the same type of cap trusted by pool builders and service technicians—not generic plumbing substitutes.