About this union/fitting
The Waterway 400-2160 Pump Union is a self-aligning plumbing connector designed for Jacuzzi spa pumps with 1-1/2″ connections. This OEM union features a 1-1/2″ female buttress thread (FBT) on one end and 1-1/2″ slip fitting on the other, providing a secure, watertight seal between your pump and plumbing system. The self-aligning design eliminates the guesswork during installation, ensuring proper thread engagement every time.
Built to Waterway’s exacting OEM standards, this pump union delivers the exact fit guaranteed for reliable long-term performance. Ships same-day from our Canadian warehouse and includes our comprehensive 1-year warranty for complete peace of mind. The union’s durable construction withstands spa chemicals and temperature cycles while maintaining leak-free operation. Verify your existing union measurements before ordering to ensure proper fitment with your spa’s plumbing configuration.
