Watts Water
Watts AquaLock Large Diameter Stackable Hose Barb Union
Universal push-to-connect fitting for copper, PEX, CPVC, and polyethylene tubing
Polypropylene Construction
Tool-Free Installation
Multi-Material Compatible
The Watts AquaLock stackable hose barb union connects large diameter tubing across a range of materials without clamps or tools. Polypropylene construction offers chemical resistance and dimensional stability for permanent or temporary connections in residential and light commercial water treatment systems.
SPECIFICATIONS
Tubing Compatibility Reference
| Polypropylene Tubing OD | Copper Tube Size (CTS) ID |
|---|---|
| 3/8" OD | 1/4" CTS |
| 1/2" OD | 3/8" CTS |
| 5/8" OD | 1/2" CTS |
| 7/8" OD | 3/4" CTS |
| 1-1/8" OD | 1" CTS |
COMPATIBILITY
Approved Tubing Materials
AquaLock fittings connect to copper, CPVC, PEX, LDPE, MDPE, HDPE, and polypropylene tubing. The stackable hose barb design allows for secure connections on softer tubing materials where push-to-connect collets may not grip effectively. Available in sizes corresponding to standard copper tube dimensions and NPT pipe thread equivalents from 1/4" through 2".
