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Flair-It Sales 30912 PEXlock 3-Way Bypass Valve 1/2" Barb x 1/2" MPT

Manufacturer

Flair-It Sales

<h3>About Flair-It Sales</h3><p>For over 30 years, <strong>Flair-It Sales</strong> has earned a reputation as one of North America's most trusted names in compression fitting technology. Built around a deceptively simple idea — push the tubing onto the cone-shaped barb, screw down the nut, and you're done — Flair-It's system delivers a reliable, leak-free seal without soldering, gluing, or specialized tools. That ease of installation, combined with proven durability, has made Flair-It a go-to solution for plumbers, contractors, RV owners, boaters, and DIYers alike.</p><h3>The Flair-It Compression System</h3><p>At the heart of the Flair-It lineup is its innovative compression fitting design. The fittings are engineered for use with PEX pipe, Polybutylene (the older grey pipe found in many manufactured homes), and Polyvinyl tubing. When the tubing is pushed over the cone-shaped barb inside the fitting, it creates what Flair-It calls the only inside-diameter seal on the market — a mechanically sound connection that holds under pressure without relying on adhesives or heat. With over 250 variations available in 3/8&quot;, 1/2&quot;, and 3/4&quot; sizes, there's a Flair-It fitting for virtually every residential or recreational plumbing application.</p><p>Beyond the classic compression series, Flair-It also offers the <strong>PEXLock</strong> line — a crimp-ring system designed for larger projects where maximum security and cost efficiency matter most. These state-of-the-art fittings require a crimp tool and are ideal for new construction or whole-home repiping jobs.</p><h3>Where Flair-It Fittings Are Used</h3><p>One of the hallmarks of the Flair-It system is its versatility across environments. The fittings are approved for both residential and recreational use, making them equally at home in a new construction build, a manufactured home retrofit, an RV fresh water system, or a marine application. Whether you're replacing old polybutylene pipe in a mobile home or plumbing a boat's pressurized water circuit, Flair-It products are designed to hold up in demanding conditions.</p><p>The brand's <a href="/11936-flair-it-sales-pipe-fitting-17358">pipe fittings</a> range covers everything from couplings, elbows, and tees to adapters and transition pieces, making it straightforward to connect different pipe types or navigate tight spaces. Their <a href="/200807-pressurized-water-system-tubing-fittings-flair-it-sales-11936">pressurized water system tubing and fittings</a> are specifically suited for systems operating under continuous water pressure — exactly the kind of environment found in RVs, boats, and manufactured homes. Completing the system, Flair-It's <a href="/17392-shut-off-valve-flair-it-sales-11936">shut-off valves</a> provide easy flow control at any point in the water line, allowing sections of plumbing to be isolated for maintenance or repair without draining an entire system.</p><h3>Why Choose Flair-It?</h3><ul style="list-style:disc"><li><strong>Tool-free installation</strong> on classic fittings — no soldering, no gluing, no crimping required</li><li><strong>Inside-diameter seal</strong> design for a secure, leak-free connection</li><li><strong>Compatible</strong> with PEX, Polybutylene, and Polyvinyl tubing</li><li><strong>250+ fitting variations</strong> in common residential sizes (3/8&quot;, 1/2&quot;, 3/4&quot;)</li><li><strong>Approved</strong> for residential, manufactured home, RV, and marine use</li><li><strong>Reusable</strong> fittings that can be disconnected and reconnected as needed</li></ul>

Part Number

30912
09/17/2036 12:21 AM
Sale Price

$14.19

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Flair-It Sales 30912 is a versatile PEXlock 3-way bypass valve designed for plumbing and hydronic heating applications. This valve features a 1/2-inch barb connection on one port and a 1/2-inch male pipe thread (MPT) connection, allowing for flexible integration into PEX and threaded piping systems.

Key Features:

  • 3-way valve configuration for bypass applications
  • 1/2-inch barb connection for secure PEX tubing attachment
  • 1/2-inch male pipe thread for connection to threaded fittings
  • PEXlock technology ensures reliable, leak-free connections
  • Ideal for water heater bypass, hydronic heating loops, and service isolation
  • Durable construction for long-lasting performance

This bypass valve is commonly used in water heater installations to allow the water heater to be isolated from the system for winterization or service without draining the entire plumbing system. The combination of barb and threaded connections provides installation flexibility in mixed piping systems.

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