Waterway Plastics Flush Plug

Waterway Plastics Flush Plug

Waterway Plastics 400-4141 is a Flush Plug designed for 1.5-Inch MPT pool and spa ports. The part provides a removable seal for unused threaded passages in plumbing lines. It serves as a maintenance-friendly termination in pool and spa systems. This description is written for technicians and serious buyers working on Waterway Plastics assemblies.

Key Features

• Seals an unused 1.5-Inch MPT port in pool or spa plumbing.
• Low-profile, flush-installed cap reduces snags in tight piping runs.
• Simple installation and removal for service or retrofits.
• Engineered for durability in typical pool chemical environments.
• Provides a clean, accessible endpoint for maintenance, minimizing water disturbance during servicing.

Where This Part Is Used

Typically, this flush plug threads into a 1.5-Inch MPT port in pool or spa plumbing. It is commonly found in line terminations within skimmer assemblies, jet bodies, pump wet ends, return lines, and filter housings. During service, it provides a removable end that preserves system integrity while offering quick access when needed. By blanking an unused port, it helps maintain proper flow and reduces potential leak paths. In retrofit projects, technicians install or remove the plug to open or close lines as components are serviced.

Why Choose Waterway Plastics

Waterway Plastics is a trusted name in pool and spa plumbing, known for reliable component engineering. The company emphasizes consistency across product lines to support straightforward assembly and service. Parts are designed for long-term serviceability, with predictable fit and reuse in standard pool plumbing. The Flush Plug demonstrates this approach by delivering a dependable, maintainable termination within Waterway Plastics systems.