The Watts AquaLock Large Diameter Hose Barb delivers secure, push-to-connect installation for high-flow plumbing runs across copper, PEX, CPVC, and polyethylene tubing. Compatible with CTS, NPT, and polypropylene sizing standards, this fitting eliminates threading and soldering for fast, reliable connections in residential and commercial water systems.
SPECIFICATIONS
Fitting Overview
Manufacturer
Watts Water Technologies
Product Line
AquaLock Push-to-Connect Fittings
Fitting Type
Large Diameter Hose Barb
Connection Method
Push-to-Connect (No Tools Required)
Material
Engineered Polymer Body
Thread Standards
CTS, NPT, NPS, MGHT
Application
Residential & Commercial Water Systems
TECHNICAL DETAILS
Polypropylene Tubing Compatibility
3/8" OD Polypropylene
1/4" CTS Copper Tube Size ID
1/2" OD Polypropylene
3/8" CTS Copper Tube Size ID
5/8" OD Polypropylene
1/2" CTS Copper Tube Size ID
7/8" OD Polypropylene
3/4" CTS Copper Tube Size ID
1-1/8" OD Polypropylene
1" CTS Copper Tube Size ID
TECHNICAL DETAILS
NPT Pipe Thread Reference
1/4" NPT
0.540" Actual OD
3/8" NPT
0.675" Actual OD
1/2" NPT
0.840" Actual OD
3/4" NPT
1.050" Actual OD
1" NPT
1.315" Actual OD
1-1/4" NPT
1.660" Actual OD
1-1/2" NPT
1.900" Actual OD
COMPATIBILITY & APPLICATIONS
Tubing & Pipe Materials
AquaLock fittings connect securely to copper, CPVC, PEX, LDPE (low-density polyethylene), MDPE (medium-density polyethylene), HDPE (high-density polyethylene), and polypropylene tubing. Ideal for potable water lines, RO system plumbing, inline filter installations, ice maker connections, and retrofit projects where soldering or threading is impractical. The large diameter barb design accommodates higher flow rates in whole-house filtration, commercial beverage equipment, and municipal water distribution applications.
💧 Pro Tip: AquaLock push-to-connect fittings eliminate the need for torches, flux, and thread sealant. Cut tubing square, deburr the end, and push firmly until seated. The internal stainless steel grab ring locks the tube in place while the O-ring seals against leaks.
