Watts AquaLock - Large Diameter Fittings (Previously SeaTech)
Watts AquaLock - Large Diameter Drop Ear Elbow
Watts AquaLock - Large Diameter Elbow Pump Fitting
Watts AquaLock - Large Diameter Stackable Hose Barb Union
Watts AquaLock - Large Diameter End Stop
Watts AquaLock - Large Diameter Reducing Stem
Watts AquaLock - Large Diameter Stackable Hose Barb Union
Watts AquaLock - Large Diameter Union Pump Fitting
Watts AquaLock - Large Diameter Reducing Union
Watts AquaLock - Large Diameter Reducing Union Tee
Watts AquaLock Large Diameter Series
Professional-Grade Push-to-Connect Fittings for High-Flow Applications
Universal compatibility with copper, CPVC, PEX, LDPE, MDPE, HDPE and polypropylene tubing
AquaLock Large Diameter fittings deliver reliable push-to-connect performance for water filtration systems requiring higher flow rates and larger tubing sizes. These professional-grade fittings eliminate the need for special tools, soldering, or crimping while maintaining secure connections across multiple tubing materials.
Key Features
Why Choose AquaLock Large Diameter
Universal Compatibility
Connect seamlessly to copper, CPVC, PEX, LDPE, MDPE, HDPE and polypropylene tubing without adapters or special fittings. AquaLock technology works with virtually every major tubing type used in water filtration applications.
Instant Push Connection
Simply push the tubing into the fitting until it stops for a secure, leak-free connection in seconds. No tools, clamps, glue, or heat required, making installations faster and reducing labor costs significantly.
Secure Collet Design
Stainless steel collet clips grip tubing firmly while allowing for easy disconnection when needed. The engineered collet system prevents accidental disconnection while maintaining the ability to service and reconfigure systems.
Installation Process
How to Install AquaLock Fittings
Prepare the Tubing
Cut tubing squarely using a proper tubing cutter to ensure a clean, perpendicular cut. Remove any burrs or debris from the cut end and verify the tubing outer diameter matches the fitting specifications for proper sealing.
Insert and Connect
Push the tubing firmly into the fitting until it bottoms out against the internal tube stop. You should feel resistance when the tubing is fully seated, ensuring the O-ring seal is engaged and the collet has gripped the tubing.
Verify and Test
Tug gently on the tubing to confirm the collet has locked properly. Pressurize the system slowly and inspect all connections for leaks before putting the system into full operation or concealing any fittings.
Pro Tip: When working with valve configurations like the 3-way bypass or selector valves, mark tubing lines clearly before connection to avoid confusion during system startup. Always keep replacement collet clips on hand for future maintenance or system modifications.
Reduced Installation Costs
Eliminate expensive tools and specialized labor requirements. AquaLock fittings install in a fraction of the time compared to traditional soldering or threading, lowering overall project costs while maintaining professional-grade reliability.
Long-Term Durability
Engineered with corrosion-resistant materials and high-grade O-rings that maintain seal integrity over years of service. The robust collet system withstands thermal expansion and contraction without compromising connection strength.
Serviceability and Flexibility
Disconnect and reconnect fittings multiple times without degradation by simply pressing the collet release. This makes system modifications, filter changes, and component upgrades straightforward without cutting tubing or replacing fittings.
Code Compliant Performance
Meets industry standards for potable water applications with NSF-certified materials. AquaLock large diameter fittings provide peace of mind for commercial installations where regulatory compliance and system reliability are critical.
