My Account
Shopping Cart

AquaLock 3515-08 Push-to-Connect Coupling 3/8" CTS

Manufacturer

AquaLock

<h3>AquaLock: Professional-Grade Push-to-Connect Fittings</h3><p>AquaLock, manufactured by Watts, represents a leading solution in push-to-connect fitting technology for marine, RV, and plumbing applications. Designed and manufactured for many years of service life, these fittings have earned their reputation as a trusted choice among boat builders, marine distributors, and professional installers worldwide.</p><h3>Tool-Free Installation Technology</h3><p>What sets AquaLock fittings apart is their innovative push-to-connect design that eliminates the need for specialized tools or soldering equipment. AquaLock features a stainless steel gripper ring that is resistant to corrosion and interlocks with multiple materials without any tools, making installation fast and accessible even in tight spaces. Installation is fast and easy on almost any CTS-sized pipe—reducing the risk of installation errors and leaks. This design philosophy means fewer callbacks for installers and more reliable connections for end users.</p><h3>Versatile Material Compatibility</h3><p>AquaLock fittings are engineered to work seamlessly with a wide range of pipe materials including PEX, copper, and CPVC. This versatility makes them ideal for retrofitting older systems or building new installations where different pipe materials may need to connect. The fittings are constructed from high-performance materials including polysulfone thermoplastic and lead-free brass options, ensuring both durability and compliance with modern potable water standards.</p><h3>Marine and RV Applications</h3><p>The number one choice for boat builders and marine distributors worldwide, AquaLock fittings excel in demanding marine environments. They are fit for many applications including potable water, raw and fresh water washdown, live well systems, hot and cold water lines, drain lines, and windshield washing systems. The corrosion-resistant construction stands up to saltwater exposure and the vibration common in marine and recreational vehicle applications.</p><h3>Product Range and Formats</h3><p>AquaLock fittings are offered in several diameters in both Inch (Imperial) and Metric formats, providing flexibility for domestic and international applications. The product line includes elbows, tees, couplings, valves, adapters, manifolds, and specialized hose assemblies. Both plastic and brass fitting options are available depending on application requirements and pressure ratings.</p><h3>Reliability Under Pressure</h3><p>AquaLock fittings are engineered to withstand demanding operating conditions. Many models are rated for working pressures up to 250 PSI and are certified to rigorous industry standards including NSF-61, NSF-14, and IAPMO specifications. The EPDM o-ring seals provide leak-free performance across a wide temperature range, while the stainless steel gripping mechanism ensures connections remain secure even under vibration and thermal cycling.</p>

Part Number

3515-08
06/01/2036 7:02 AM
Sale Price

$6.91

In Stock (10+)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The AquaLock 3515-08 is a 3/8 inch CTS plastic coupling that works with copper, CPVC, PEX, and CTS rated pipe. Constructed from polysulfone, a high-performance thermal plastic material, this push-to-connect fitting delivers reliable, tool-free installation for plumbing applications.

Key Features:

  • Easy to install, no tools or tube inserts required
  • Unique O-ring guide feature provides a zero-leak connection
  • Joins tubing on the outside, increasing flow capacity
  • Tubing able to swivel after connection, ideal for vibrating and dynamic applications
  • Can be used for hot and cold water applications
  • Reusable fitting design
  • Backed by a 25-year limited warranty

This coupling features a swivel nut with NPS straight threads and a cone seal, allowing for quick installation without thread sealant. The AquaLock series is suitable for both residential and commercial applications, including behind-the-wall installations.

All good

Awesome experience. Fast shipping. Product is as advertised.

I was hesitant to order from this site at first but was order was processed very quickly. I did pay the extra 9.99 for 2-day shipping and it took about 5 days for shipping total

Found some hard to find items I had been searching a while for.

Everything looks great so far.

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy