A2 Stainless Steel Straight Hose Joiner Barbed Connector — Sizes 6mm–41mm

Match the barb diameter to your hose's inner diameter (ID). For example, a 6mm (≈1/4") barb fits a hose with a 6mm ID. Measure the inside of your hose with calipers for accuracy. A snug fit over the barb is what creates a leak-resistant seal — the hose should stretch slightly over the barb ridges.

A2 stainless steel (304 grade) is an austenitic alloy with typically 18% chromium and 8% nickel. It offers good tensile strength and corrosion resistance, and is generally suitable for moderate-pressure fluid and air lines in residential, garden, and light workshop settings.

Yes. A2 stainless steel provides good resistance to moisture, rain, and mild chemicals, making it generally suitable for outdoor plumbing, garden irrigation, and marine-adjacent applications. For highly saline or chlorinated environments (e.g., saltwater marine use), A4 (316) grade stainless is typically recommended instead.

These straight barbed connectors work best with flexible hoses made from rubber, silicone, PVC, and polyurethane. The barbed design relies on the hose material having enough elasticity to grip the ridges. Rigid tubing (copper, CPVC, hard nylon) is not compatible with barbed push-on fittings.

For low-pressure or gravity-fed systems (e.g., garden drip irrigation), the barb grip alone is often sufficient. For pressurized air or water lines, using a hose clamp over the hose end is strongly recommended to prevent blow-off under pressure spikes.

A2 stainless steel is generally resistant to many fuels, oils, and mild chemicals. However, compatibility depends on the specific fluid and hose material. Always verify chemical compatibility for your application before use in fuel or solvent transfer systems.

For a single hose repair or join, 1 piece is typically sufficient. For larger plumbing or irrigation projects, or to keep spares on hand, the 5- or 10-piece options offer better value per unit. Each variant listing shows the per-piece price so you can compare easily.

Common conversions: 6mm ≈ 1/4", 8mm ≈ 5/16", 10mm ≈ 3/8", 12mm ≈ 1/2", 16mm ≈ 5/8", 19mm ≈ 3/4", 22mm ≈ 7/8", 25mm ≈ 1", 32mm ≈ 1-1/4", 38mm ≈ 1-1/2", 41mm ≈ 1-5/8". Always measure your hose ID directly rather than relying solely on nominal size labels.