AquaLock Gaskets & Seals

AquaLock Gaskets & Seals: Precision Sealing for Demanding Environments

When it comes to maintaining leak-free fluid systems aboard a boat, in an RV, or across any demanding plumbing installation, the integrity of every seal matters. AquaLock — a brand under the Watts family, formerly known as SeaTech — has built its reputation on one core promise: connections that hold under pressure, vibration, and the relentless demands of marine and mobile environments. Their Gaskets & Seals offerings are a natural extension of that commitment, providing the critical sealing components that keep push-to-connect plumbing systems performing as designed.

Purpose-Built Seals for Push-to-Connect Systems

AquaLock's gaskets and seals are engineered specifically to complement their push-to-connect fitting ecosystem. A standout example is their cone seal line, available in multiple thread sizes including 1/2" NPS and 3/4" NPS/FGHT configurations. These cone seals are designed to create a dependable, watertight joint at the threaded connection points of AquaLock fittings — a critical detail in any system where even a minor drip can escalate into a serious problem.

Central to AquaLock's sealing performance is their O-ring guide feature, which provides what engineers describe as a zero-leak connection geometry. Rather than relying on friction alone, the guided O-ring seats precisely within the fitting, ensuring consistent compression and sealing across a wide range of operating conditions — including both hot and cold water lines.

Why Seals Matter in Marine & RV Plumbing

Marine and RV plumbing systems face unique stresses that land-based residential systems rarely encounter: constant vibration, thermal cycling between hot and cold water, exposure to both potable and raw water, and the ever-present risk of saltwater corrosion. AquaLock addresses these challenges with sealing components that are matched to their corrosion-resistant stainless steel gripper rings, ensuring the entire connection — fitting, gripper, and seal — works as a unified system. Compatible tubing materials include copper, PEX, CPVC, LDPE, MDPE, HDPE, and polybutylene, giving technicians and DIYers broad flexibility across different plumbing setups.

Certifications You Can Trust

AquaLock's products, including their gaskets and seals, are backed by certifications to ANSI, NSF, and ASTM standards, and the brand is a member of the Water Quality Association (WQA). For anyone working on potable water systems — a common application in both marine vessels and recreational vehicles — this level of certification is non-negotiable. It confirms that sealing materials meet strict requirements for safety, material compatibility, and long-term performance in drinking water contact.

A Trusted Legacy in Fluid Connection

Originally established under the SeaTech name, AquaLock has been supplying boat builders and marine distributors with fluid connection solutions since 1995. The rebrand to AquaLock reflects a continued investment in the product line without disrupting the part numbers or specifications that tradespeople and OEMs have relied on for decades. Whether you're servicing an existing SeaTech installation or building out a new system from scratch, AquaLock gaskets and seals ensure every joint stays tight for the long haul.

Explore the full range of AquaLock products or browse the complete selection of Gaskets & Seals to find the right sealing solution for your application.