400-1990 1" S Union Nut with 1" Slip Tailpiece & O-Ring – Complete Union Assembly

Maintain secure, leak-free spa plumbing connections with the Waterway 400-1990 1" S Union Nut with 1" Slip Tailpiece and O-Ring. This complete union assembly is designed to connect 1-inch plumbing lines to pumps, heaters, and other spa equipment while allowing for easy removal during servicing or maintenance.

Manufactured by Waterway, a trusted name in spa components, this union features a durable 1" slip tailpiece for solvent-weld PVC connections, a precision-moulded union nut for secure tightening, and a properly fitted O-ring to ensure a watertight seal. If your existing union is cracked, stripped, or leaking, replacing it with a genuine Waterway assembly restores both performance and reliability.

Ideal for hot tubs and spa systems using 1-inch plumbing, this union assembly helps simplify future repairs while protecting against costly water leaks.

Features:
✔️ Genuine Waterway replacement part (#400-1990)
✔️ 1" slip tailpiece for solvent-weld PVC connection
✔️ Includes union nut and O-ring for complete installation
✔️ Ensures secure, leak-resistant plumbing connections
✔️ Allows easy disconnection for equipment servicing

Keep your spa plumbing system running smoothly with this Waterway union assembly, available now at Splash Pool & Spa - Peterborough’s trusted pool and hot tub supply store, proudly shipping across Canada and the USA.