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Your cart is empty.Simplify your plumbing and home improvement projects with the John Guest Male Connector. These easy-to-install male couplers are equipped with EPDM O-rings that utilize John Guest's push-fit technology to make easy, reliable, and leak-free connections. This FDA-compliant plumbing fitting is made with durable and lead-free plastics that provide resistance against chemicals.
jm
August 15, 2025
Always prefer John quest. I have one of those under the sink RO systems that was built like Johnny cash's Cadillac: 1 piece at a time. It's a nightmare to think abt - needing all manner of parts, reducers, etc. John quest parts are known for their durability, they don't leak, work well w other parts, & install easily.
Frank Esposito
July 22, 2025
John Guest fittings work with PEX, CPVC, and copper tubing . The important word in that sentence is WORK , I'm a big fan of PEX because it is flexible, CPVC and copper are not, but properly installed JG fittings do a foolproof, leakproof ,job that anyone with a tape measure , proper cutting tool, and a DYS attitude can be proud of ,using any of the three materials. JG fittings have other big plus going for them, they are removable, and reusable , never corrode, are very cost effective, and come in a wide range of fittings, in every size. SO no plumber, no wrenches, no soldering, no taping, etc etc VS snip , push,click and done. PS Amazon sells PEX tubing, PEX cutters, CTS [copper tubing] cutters, sent to your door , every thing you need , Personally I'd rather have a root canal than spend hours in a BIG BOX store trying to find what I need , getting only 1/2 my list and all the aggravation !!!
Chicago Dan
July 14, 2025
TLDR: 🌟🌟🌟🌟🌟 John Guest products make DIY water line installations a breeze, offering professional-grade results.As I've embarked on DIY projects at home, particularly installing water lines to my filtration system, I've found John Guest fittings to be indispensable. These fittings are incredibly user-friendly and make the installation process so straightforward, they almost make me feel like a seasoned plumber.The ease of use is a huge plus for someone who doesn't do plumbing work full-time. With John Guest products, the task becomes less daunting and more enjoyable. The quality of these fittings is top-notch, making them my go-to choice for such projects. They truly stand out as the best in the market for DIY water line installations.
sal
July 4, 2025
Fits and Works Well
pearl
June 29, 2025
Works great and it is easy to install. Did not experience any of the issues other users have experienced. Highly recommended.
David Hoffman
June 11, 2025
The packaging says 3/8, but the part inside was closer to 1/2. It was huge. I have the male version, from the same company, in the same package, and this does not come close to mating with it.
Siva
May 10, 2025
The John Guest 3/8 Inch OD x 3/8 Inch NPT Straight Adapter is an easy-to-use solution for quick plumbing connections. The push-to-connect design is intuitive and saves time, eliminating the need for complex tools or expertise. It's lightweight and compatible with various applications, making it a handy fitting for DIY projects.While convenient, the plastic material is not as strong in high-pressure or high-temperature conditions as metal alternatives. Other users report minor leaks if the connection isn't perfectly secured. Its simplicity and functionality earn it a rating of 3 stars.
Kevin
April 22, 2025
It's a fitting, not very glamorous. Looks well made. Bolted up fine and didn't leak - what more can you ask for.
Aaron M
March 22, 2025
Product did exactly what it says. Just push the tube In until it bottoms out and you will have leak free connections. It is important to make clean square cuts on your tubing. I used a tubing cutter for this.
Adam
March 19, 2025
The product fits great, I like it. I just want to suggest that it would be even better if it is wrapped with plumber's tape. When I got it, it fits fine, but it has tiny leaks. So I asked around, and people told me that I have to wrap it with plumber's tape. That resolves the problem. But it would be great if the product already had plumber's tape wrapped around it so I don't have to rush into canadian tire to get one.
Kent zoller
January 31, 2025
Threads arrived stripped dont buy cheap garbage not made in Canada or America dont buy
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