Walter 3/8 Barb x 1/4 MPT Fitting

Reliable Connections for Your Shop Equipment

When you are in the middle of a fabrication project or maintaining your shop equipment, the last thing you want to deal with is a leaky hose or a broken connector. The Walter 48D649 Barbed Fitting / MPT is the kind of no-nonsense hardware that keeps your shop running smoothly. Designed to connect flexible tubing to threaded ports, this fitting is a staple for anyone managing air lines, coolant systems, or parts washers. Its straightforward design allows you to quickly replace damaged connectors and get back to work.

The fitting features a secure barbed end that slides into your hose. The ridges on the barb bite into the inner liner of the hose, creating a friction seal that resists pulling out. For the best results, throw a hose clamp on there, and you have a connection that isn't going anywhere. On the flip side, the Male Pipe Thread (MPT) screws directly into pumps, manifolds, or regulators. It’s a universal style of connection that solves a lot of plumbing headaches in the welding shop or garage.

Why choose a Walter fitting? Because quality matters even in the small stuff. Cheap fittings can crack, cross-thread, or corrode, leading to frustrating leaks that waste expensive fluids or drop your air pressure. Walter Surface Technologies builds gear for professionals, so you can trust that this fitting is machined correctly and built to last. It’s perfect for fixing up that old Bio-Circle machine or rigging up a custom cooling line for your welding setup.

Don't let a ten-cent leak cause a hundred-dollar problem. Keep your fluid transfer systems tight and efficient with the 48D649. It’s easy to install with a simple wrench and some thread tape. Whether you are running water, air, or cleaning solvents, this barbed adapter gives you the confidence that your lines are secure. Add a few to your spare parts bin so you are never stuck waiting on a delivery just to fix a simple hose connection.