Waterway | 429-3020 | Water Stop – 2" PVC Plumbing Seal Fitting

The Waterway 429-3020 Water Stop 2" is a genuine OEM PVC fitting engineered to create a watertight seal around plumbing penetrations in pool, spa, and water feature installations. Designed to prevent water migration along the outside of 2-inch pipes embedded in concrete or other structural surfaces, this fitting ensures long-term leak prevention and structural integrity. Constructed from high-grade, chemical-resistant PVC, the 429-3020 delivers excellent durability and corrosion resistance in both freshwater and chemically treated environments. It is a standard choice for professional builders and service technicians performing new installations or repairs that require reliable sealing around pipe walls.

Key Features

• 2" PVC Water Stop: Designed to seal around 2-inch plumbing penetrations through concrete walls or other structural surfaces to prevent external water leakage.

• Watertight Barrier Protection: Creates a reliable, watertight seal that prevents water migration along the exterior of the pipe, protecting structural integrity and surrounding surfaces.

• Durable PVC Construction: Manufactured from heavy-duty, pool-grade PVC that resists corrosion, chemical exposure, and pressure stress for long-term reliability.

• Versatile Application: Commonly used in pools, spas, fountains, and water features for both new builds and retrofitted wall-penetration sealing projects.

• OEM Waterway Part: Built to precise factory specifications, ensuring proper fit and compatibility with standard 2" plumbing assemblies.

Product Overview
The Waterway 429-3020 Water Stop 2" fitting is a critical sealing component in professional pool and spa plumbing installations. It is designed to form a barrier that stops water from leaking or wicking along the exterior of 2-inch pipes that penetrate concrete, gunite, or other structural surfaces. Without a water stop in place, even minor leaks can cause moisture damage, structural weakening, and costly repairs over time.

This fitting features a precision-molded flange that embeds into the wall structure during installation, forming a secure mechanical bond between the pipe and the surrounding material. Made from pool-grade PVC, the 429-3020 offers excellent resistance to pool chemicals, saltwater, and UV exposure, ensuring decades of reliable performance.

Ideal for use in both new construction and renovation applications, the Waterway 429-3020 is compatible with standard 2-inch plumbing and can be easily integrated into any pool, spa, or water feature design. For technicians and contractors, this component simplifies leak prevention and ensures consistent, long-term sealing at wall penetrations.