Aqua Ultraviolet – Union Half 3/4" with O-Ring

Aqua Ultraviolet – Union Half 3/4" with O-Ring

Overview

OEM replacement 3/4" union half for Aqua Ultraviolet UV sterilizers and accessories. Includes a fresh O-ring to restore a clean, drip-tight connection when a union half is cracked, cross-threaded, or missing.

Key Features

• Genuine Aqua Ultraviolet 3/4" union half

• Includes O-ring sized for the factory groove

• Durable, chemical-resistant construction

• Enables quick, tool-light disassembly for maintenance or winterizing

Compatibility

• Fits Aqua Ultraviolet Classic / Advantage / SL models that use 3/4" unions

• Matches the opposite factory union half on the unit (verify your union style—slip, barb, or socket—before ordering)

Specifications

• Size: 3/4" union half (single side)

• Seal: 3/4" union O-ring (included)

• Material: UV- and corrosion-resistant polymer

• Use: External plumbing; non-submersible component

What’s Included

• (1) 3/4" union half

• (1) 3/4" union O-ring

Installation Notes

1. Shut off pump and relieve pressure.

2. Separate the union; remove the old O-ring and clean groove/sealing faces.

3. Lightly lube the new O-ring with silicone-safe grease; seat evenly.

4. Hand-tighten, then snug—do not overtighten.

5. Pressurize and leak-test.