G1/2 Brass Triangle Valve – Water Stop Valve | Bathroom & Laundry

Keep your home's plumbing under firm control with this G1/2 Brass Triangle Valve — a heavy-duty, corrosion-resistant water shut-off valve engineered for long-term reliability. Whether you're fitting out a bathroom, connecting a toilet, a water heater, or a washing machine, this universal tee-type inlet valve delivers a secure, leak-free connection every time.

Why Choose This Triangle Valve?

• Premium Stainless Steel Construction: Built from durable stainless steel for outstanding corrosion resistance and a long service life — even in humid bathroom and laundry environments.
• High-Pressure Rated: Rated to withstand a minimum of 850 kPa, this valve performs dependably in high-pressure water systems without leaking or failing.
• Universal G1/2 (4-Point) Threaded Connection: The standard G1/2 threaded fitting ensures broad compatibility with faucets, toilets, water heaters, and washing machine inlets across most residential plumbing setups.
• Easy-Operation Switch Design: The intuitive tee-style universal switch makes turning water on or off quick and effortless — no special tools required.
• Leak-Proof Threaded Seal: Precision-machined threaded connection delivers a tight, secure seal to prevent drips and water damage.
• Versatile Application: Suitable for bathrooms, toilets, water heaters, kitchen sinks, washing machines, and more — a true multi-purpose shut-off solution.

Technical Specifications

Ideal For

• Bathroom faucet inlet connections
• Toilet cistern water supply lines
• Water heater inlet shut-off
• Washing machine water supply control
• Kitchen sink under-cabinet plumbing

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For more guidance on safe plumbing practices and home water systems, visit the U.S. Consumer Product Safety Commission – Home Safety Resource.

Learn more: Valve

Frequently Asked Questions

Q: What thread size does this brass triangle valve use?

A: This valve uses a standard G1/2 (also called "4-point") threaded connection, which is one of the most common thread sizes in residential plumbing. It is compatible with most faucets, toilet cisterns, water heaters, and washing machine inlet fittings.

Q: Can this valve handle high water pressure?

A: Yes. This triangle valve is rated to withstand a minimum operating pressure of 850 kPa, making it well-suited for both standard and higher-pressure household water supply systems.

Q: Is this valve suitable for both hot and cold water lines?

A: The stainless steel construction and robust threaded seal make this valve appropriate for use on both hot and cold water supply lines, including connections to water heaters and heated faucet systems.

Q: How do I install this water stop valve?

A: Installation is straightforward — simply thread the valve onto the G1/2 inlet fitting using hand-tightening, then finish with a wrench for a snug, leak-proof seal. Use PTFE (plumber's) tape on the threads for extra security. No special tools or professional plumbing experience is required for most standard applications.

Q: Will this valve fit my washing machine water supply hose?

A: This valve is designed as a universal G1/2 shut-off, compatible with most standard washing machine water supply hoses. We recommend verifying your existing inlet fitting thread size before purchase to ensure compatibility.