Plastic Straight Barbed Connector Reducer Joiner Tubing Pipe Hose Fitting Water

Measure the inner diameter (ID) of each hose you want to join. The barb size listed (e.g., 12.7mm – 9.5mm) refers to the outer diameter of each barbed end, which is designed to fit into tubing whose inner diameter closely matches that barb. A snug fit is essential — too loose and the fitting will leak; too tight and the tubing may split. When in doubt, size down and test fit before committing to a bulk order.

For low-to-moderate pressure applications such as drip irrigation or aquarium lines, the barbed design typically holds securely without clamps when the tubing ID matches the barb closely. For higher-flow or higher-pressure systems, adding a hose clamp over the tubing at each barb is strongly recommended to prevent blow-off.

Yes. Plastic construction means these connectors will not rust or corrode when exposed to water, moisture, or common fertilizer solutions used in irrigation and hydroponics. They are suitable for outdoor drip lines and submerged aquarium applications, though prolonged UV exposure may cause gradual degradation over time.

The fittings are made from plastic, but food-grade or potable-water certification is not confirmed for this product. If your application requires NSF or food-safe certification, please contact us to confirm material compliance before ordering.

These fittings are designed for flexible tubing such as silicone hose, vinyl/PVC tubing, polyethylene irrigation tubing, and similar soft-walled hose materials. They are not suitable for rigid pipe (e.g., CPVC, copper, or threaded fittings) without an appropriate adapter.

For a single repair or prototype, the 1- or 2-piece options let you test fit and confirm compatibility before committing. For irrigation system builds, aquarium manifolds, or workshop restocking, the 10-, 20-, 50-, or 100-piece packs offer a lower per-unit cost and ensure you have spares on hand. The size combination you need most frequently is the best candidate for a bulk pack.

Cut your tubing cleanly and squarely. If the tubing is stiff, briefly warm the end in warm water to soften it. Push the barbed end firmly into the tubing until the first barb is fully seated inside the hose wall. Repeat on the other end with the second (smaller or larger) tube. For added security, slide a hose clamp over the tubing before inserting the fitting, then tighten it over the barb once seated.