Watts Water
Watts AquaLock - Large Diameter Stackable Elbow
$3.37
The Watts AquaLock Large Diameter Stackable Elbow is a push-to-connect fitting designed for quick, tool-free installation on tubing sizes from 3/8" to 1-1/8" OD. Compatible with copper, CPVC, PEX, LDPE, MDPE, HDPE, and polypropylene tubing, this stackable elbow provides secure, leak-resistant connections in water filtration and plumbing systems.
SPECIFICATIONS
Watts AquaLock Stackable Elbow
| Manufacturer | Watts Water Technologies |
| Product Line | AquaLock Push-to-Connect Fittings |
| Fitting Type | Stackable Elbow (90-degree) |
| Connection Method | Push-to-connect, tool-free installation |
| Tubing Compatibility | Copper, CPVC, PEX, LDPE, MDPE, HDPE, Polypropylene |
| Large Diameter Sizes | 3/8" OD (1/4" CTS) through 1-1/8" OD (1" CTS) |
| Material Construction | Engineered polymer with stainless steel grab ring |
TUBING SIZE REFERENCE
AquaLock Sizing Chart
| 3/8" OD Polypropylene | 1/4" CTS (Copper Tube Size) |
| 1/2" OD Polypropylene | 3/8" CTS |
| 5/8" OD Polypropylene | 1/2" CTS |
| 7/8" OD Polypropylene | 3/4" CTS |
| 1-1/8" OD Polypropylene | 1" CTS |
COMPATIBILITY & APPLICATIONS
Where to Use This Fitting
The Watts AquaLock Large Diameter Stackable Elbow is designed for residential and light commercial water filtration systems, reverse osmosis installations, ice maker lines, refrigerator connections, and general plumbing applications where quick disconnects are beneficial. The stackable design allows multiple fittings to be connected in series for complex routing configurations. Compatible with all major tubing materials including copper tube (CTS), PEX, CPVC, and polyethylene (LDPE, MDPE, HDPE). Ideal for installations requiring frequent filter changes or system maintenance where tool-free disconnection speeds up service work.
💧 Watts AquaLock fittings eliminate the need for crimping, clamping, or soldering. Simply cut the tubing square, mark the insertion depth, and push firmly until the grab ring seats. To disconnect, push the collet ring toward the fitting body while pulling the tubing out. Verify tubing is fully inserted by checking the witness mark against the fitting shoulder before pressurizing the system.
