Waterway Plastics 400-4061 Union Assembly Number 7 - 1.5 inch Spa Pump

What This Part Is Used For
The Waterway Plastics 400-4061 union assembly is used to connect a 1.5 inch spa pump to the plumbing system while allowing future disconnection. It creates a sealed yet serviceable joint at the pump inlet or outlet. This union assembly is commonly found on Waterway spa pumps. It allows technicians to remove pumps without cutting pipe.

Why This Part Matters
Pump unions are critical for long-term serviceability. Without a proper union, even routine pump replacement can turn into a major plumbing repair. A worn or cracked union can introduce air leaks or water loss at the pump. Using the correct OEM union ensures proper sealing and alignment.

Key Features and Specifications

• Manufacturer part number 400-4061
• Union Assembly Number 7
• Designed for 1.5 inch spa pump connections
• Allows pump removal without cutting plumbing
• Includes threaded union nut and tailpiece assembly
• Used on select Waterway spa pumps
• Creates a sealed yet serviceable pump connection
• OEM Waterway Plastics part

Installation and Fitment Guidance
This union assembly threads directly onto compatible Waterway pump housings. The tailpiece is solvent-welded to the plumbing line. The union nut allows disconnection for service or replacement. Confirm by manufacturer part number before ordering.

About the Waterway Plastics Brand
Waterway Plastics manufactures complete spa pump systems and supporting components. Their union assemblies are designed for precise fit and long-term sealing. Service professionals rely on Waterway unions to simplify maintenance. The brand prioritizes compatibility across pump models.

Common Service Context
This union is often encountered during pump replacement or leak diagnostics. Technicians identify it at the pump inlet or discharge. It is commonly replaced when seals wear or housings are upgraded.