Stainless Steel Barb Hose Fittings — Straight, Elbow, Tee, Y-Piece & Cross

Match the barb OD (outer diameter) to your hose's inner diameter (ID). For example, a 10mm (≈3/8") barb fitting is generally used with hose that has a 10mm internal bore. When in doubt, measure your hose ID with calipers before ordering — a barb that is slightly oversized will stretch the hose for a tighter grip, but too large a barb can split the hose end.

Stainless steel barb fittings of this type are typically rated for moderate working pressures suitable for water, air, and general fluid transfer lines. Exact pressure ratings vary by size and the hose material used. For high-pressure applications, always use a stainless steel hose clamp and contact us to confirm the rating for your specific size and use case.

Yes. Stainless steel construction provides strong resistance to rust, oxidation, and mild chemical exposure. These barb connectors are generally suitable for outdoor irrigation systems, greenhouse plumbing, marine-adjacent installations, and humid workshop environments where standard carbon steel fittings would corrode.

These fittings are compatible with flexible hoses including PVC, silicone, rubber, and polyurethane tubing. The barbed shank grips the hose interior mechanically. For pressurized air or water lines, secure the hose end with a stainless steel hose clamp to prevent blow-off. They are not designed for rigid pipe or threaded connections.

Choose based on your routing layout: Straight for inline hose-to-hose connections; Elbow (90°) for routing around corners or in tight spaces; Tee for splitting one line into two at 90°; Y-Piece for angled splits that reduce flow turbulence; Cross for four-way junctions. In most cases, elbows and tees are the most commonly used in compressed air and irrigation systems.

These are barb-style fittings, not threaded, so thread sealant (PTFE tape, pipe dope) is not applicable. The barb ribs grip the hose interior without adhesive. However, for any pressurized line — compressed air, water under pressure, or coolant — a stainless steel hose clamp placed over the hose end at the barb is strongly recommended to prevent the hose from pulling off under pressure.

These fittings are sized in metric (mm). Common US hose sizes are fractional inches — for reference: 6mm ≈ 1/4", 8mm ≈ 5/16", 10mm ≈ 3/8", 12mm ≈ 1/2", 16mm ≈ 5/8", 20mm ≈ 3/4", 25mm ≈ 1". Note that metric and fractional sizes are close but not always identical — always measure your hose's actual inner diameter in millimeters before ordering to ensure a proper fit.