Guest 1/4x1/8 R M Ell

John Guest quick-connect fittings are the gold standard in RO and filtration tubing, and the John Guest 1/4" x 1/8" Reducing Male Elbow brings that trusted performance to tight reducing connections. This push-fit elbow turns a 1/4" tube line through a clean 90 degrees while terminating in a 1/8" male iron pipe thread, ideal for connecting tubing to the small threaded ports found on filters, membranes, gauges, and accessories.

Trusted push-fit reliability

Molded from durable polypropylene, John Guest fittings make secure, leak-resistant connections in seconds: simply push the tubing into the collet, which grips and seals it automatically and holds it against system pressure. The reducing male elbow combines a directional turn with a threaded transition in a single compact body, saving space in crowded under-sink and equipment assemblies where a straight fitting would force the tubing into an awkward bend.

• John Guest 1/4" tube x 1/8" MIPT reducing male elbow
• Push-to-connect collet grips and seals tubing instantly
• 90-degree turn for compact tubing routing
• Durable polypropylene construction for water treatment
• Connects 1/4" tubing to small 1/8" threaded ports
• Reusable design allows tubing removal and reconnection

For a leak-free joint, cut the tubing squarely with a tube cutter and push it fully into the collet until it seats against the internal stop, then give it a light tug to confirm it is locked in place. Seal the 1/8" threaded end with PTFE tape before mating. To release the tube later, simply press the collet ring inward and pull. These compact John Guest elbows are indispensable in reverse osmosis systems and filtration plumbing, letting installers route 1/4" tubing neatly to small threaded connections while keeping the layout clean and serviceable. Keeping a few on hand makes professional, kink-free tubing runs far easier to achieve.

For technicians who build and service RO systems regularly, these reducing elbows are exactly the kind of small, reliable component that keeps a parts kit complete. Combining a space-saving turn with a quick, leak-resistant connection, this John Guest fitting helps installers produce clean, professional tubing layouts in even the tightest enclosures. Compact, reliable, and quick to connect, it is a fitting that experienced RO installers reach for again and again.