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Watts AquaLock - Large Diameter Stackable Hose Barb Union

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Watts AquaLock - Large Diameter Stackable Hose Barb Union

Watts AquaLock

Large Diameter Stackable Hose Barb Union

Push-to-connect union fitting for large diameter tubing connections in water filtration and plumbing systems
Tool-Free Installation Multi-Material Compatible Polypropylene Construction

The Watts AquaLock Large Diameter Stackable Hose Barb Union provides secure, leak-resistant connections for copper, CPVC, PEX, LDPE, MDPE, HDPE, and polypropylene tubing without threading or soldering. Designed for large diameter applications, this fitting integrates seamlessly into residential and light commercial water treatment systems where reliable push-to-connect joints are required.

TECHNICAL SPECIFICATIONS

Tubing Compatibility Reference

Polypropylene Tubing (OD) Copper Tube Size (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
THREAD STANDARDS

NPT Pipe Thread Reference

OD Actual (Inches) Pipe Thread Size (NPT)
0.540" 1/4" NPT
0.675" 3/8" NPT
0.840" 1/2" NPT
1.050" 3/4" NPT
1.315" 1" NPT
1.660" 1-1/4" NPT
1.900" 1-1/2" NPT
2.375" 2" NPT
COMPATIBILITY

Supported Tubing Materials

AquaLock fittings connect to copper, CPVC, PEX, LDPE, MDPE, HDPE, and polypropylene tubing. CTS refers to copper tube size (inside diameter), NPT is National Pipe Tapered thread standard used for male (MIP) or female (FIP) connections, NPS is National Pipe Straight thread (IPS), and MGHT designates male garden hose thread. The stackable hose barb design accommodates large diameter lines common in whole-house filtration, reverse osmosis feed lines, and distribution manifolds.

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From $0.97

Original: $2.77

-65%
Watts AquaLock - Large Diameter Stackable Hose Barb Union—

$2.77

$0.97

Product Information

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Description

Watts AquaLock

Large Diameter Stackable Hose Barb Union

Push-to-connect union fitting for large diameter tubing connections in water filtration and plumbing systems
Tool-Free Installation Multi-Material Compatible Polypropylene Construction

The Watts AquaLock Large Diameter Stackable Hose Barb Union provides secure, leak-resistant connections for copper, CPVC, PEX, LDPE, MDPE, HDPE, and polypropylene tubing without threading or soldering. Designed for large diameter applications, this fitting integrates seamlessly into residential and light commercial water treatment systems where reliable push-to-connect joints are required.

TECHNICAL SPECIFICATIONS

Tubing Compatibility Reference

Polypropylene Tubing (OD) Copper Tube Size (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
THREAD STANDARDS

NPT Pipe Thread Reference

OD Actual (Inches) Pipe Thread Size (NPT)
0.540" 1/4" NPT
0.675" 3/8" NPT
0.840" 1/2" NPT
1.050" 3/4" NPT
1.315" 1" NPT
1.660" 1-1/4" NPT
1.900" 1-1/2" NPT
2.375" 2" NPT
COMPATIBILITY

Supported Tubing Materials

AquaLock fittings connect to copper, CPVC, PEX, LDPE, MDPE, HDPE, and polypropylene tubing. CTS refers to copper tube size (inside diameter), NPT is National Pipe Tapered thread standard used for male (MIP) or female (FIP) connections, NPS is National Pipe Straight thread (IPS), and MGHT designates male garden hose thread. The stackable hose barb design accommodates large diameter lines common in whole-house filtration, reverse osmosis feed lines, and distribution manifolds.

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Watts AquaLock - Large Diameter Stackable Hose Barb Union | Isopure Water