The Watts AquaLock Large Diameter Angle Stop Valve delivers secure, push-to-connect installation for copper, PEX, CPVC, and polyethylene tubing without crimping, soldering, or special tools. This universal angle stop adapter accommodates tubing from 3/8" to 1-1/8" OD and connects to standard CTS copper sizes from 1/4" to 1" for reliable plumbing fixtures and appliance shutoff applications.
SPECIFICATIONS
Watts AquaLock Angle Stop Valve
Brand
Watts Water
AquaLock series
Valve Type
Angle Stop
Large diameter fitting
Connection
Push-to-Connect
No tools required
Tubing Range
3/8" to 1-1/8"
OD sizing
TECHNICAL DETAILS
Tubing Compatibility Chart
| Polypropylene Tubing (OD) | 3/8", 1/2", 5/8", 7/8", 1-1/8" |
| Copper Tube Size (ID) | 1/4" CTS, 3/8" CTS, 1/2" CTS, 3/4" CTS, 1" CTS |
| Compatible Materials | Copper, CPVC, PEX, LDPE, MDPE, HDPE, Polypropylene |
| Thread Standards | NPT (National Pipe Tapered), CTS (Copper Tube Size) |
| Installation Method | Push-to-connect, no crimping or soldering required |
| Application | Fixture and appliance shutoff valves |
| Diameter Classification | Large diameter angle stop adapter |
COMPATIBILITY & APPLICATIONS
Universal Plumbing Connections
The Watts AquaLock angle stop valve installs on water supply lines for toilets, faucets, water heaters, and filtration systems where a shutoff valve is required. The push-to-connect design accommodates copper, PEX, CPVC, and all grades of polyethylene tubing (LDPE, MDPE, HDPE) without compression rings, crimp tools, or heat fusion. Match polypropylene tubing OD to the corresponding copper tube size ID using the sizing chart: 3/8" OD tubing connects to 1/4" CTS, 1/2" OD to 3/8" CTS, and so on through 1-1/8" OD for 1" CTS applications. AquaLock fittings are ideal for retrofit installations, repairs, and new construction where speed and reliability matter.
💧 Pro Tip: Always verify your tubing's actual outside diameter before selecting an AquaLock fitting. Polypropylene and PEX tubing sizes refer to OD measurements, while copper tube size (CTS) refers to the inside diameter of the corresponding copper pipe.
