Description
Waterway 1" Pump Union 400-1940 with 3/4" Tailpiece
Intro
The Waterway 400-1940 is a 1" pump union built for hot tub and spa plumbing. It provides a secure, leak-resistant connection between pump and piping, featuring a 1" union nut, a 3/4" ribbed barb tailpiece, and an O-ring. Designed by Waterway, it makes service fast and straightforward.
List of Features
- 1" union nut for standard spa connections — fits most pump ports.
- 3/4" ribbed barb tailpiece — ensures a secure tubing grip.
- O-ring included — provides a reliable, leak-free seal.
- Quick-disconnect design — speeds maintenance and pump swaps.
- Waterway brand reliability — trusted by spa pros for durable spa unions.
Final Thoughts
Choose the Waterway 400-1940 for a dependable, easy-to-service spa connection. It reduces downtime, protects against leaks, and simplifies future repairs. Ideal for hot tubs and spa plumbing projects, this union is a smart, long-term replacement part. Add to cart now to ensure your spa stays up and running.












