The DMfit 3/8″ push-fit straight connector joins two 3/8″ tubes in a straight line. It serves as a coupling to extend a 3/8″ tube that is too short, connect two pieces, or repair a section where the tube has been cut or kinked—without replacing the entire line.

It is designed for the larger 3/8″ line used in high-flow water filtration and reverse osmosis systems.

Both ends feature a push-fit connection: push the tube into the fitting and it locks automatically to create a watertight seal, without tools. To disconnect, press the collet and pull out the tube.

DMfit fittings are known for their reliability and leak-tight performance, and are widely used in water filtration systems. This fitting is made of durable plastic suitable for drinking water.

For added security, pair each end with a 3/8″ locking clip.