Brass Y Barbed Hose Tail Joiner — Tube Connector for Air, Water, Fuel & Gas

Match the barb outer diameter (OD) to your hose's inner diameter (ID). The size format shown — e.g., 10mm-6mm-6mm — means the main port barb is 10mm OD and both branch barbs are 6mm OD. As a quick reference: 6mm ≈ 1/4", 8mm ≈ 5/16", 10mm ≈ 3/8", 12mm ≈ 15/32", 16mm ≈ 5/8". Measure your hose ID with calipers for the most accurate fit. When in doubt, contact us to confirm before ordering.

The three numbers represent the barb outer diameters of each port: Main inlet × Branch 1 × Branch 2, all in millimeters. So 10mm-6mm-6mm means the main (inlet) port fits a hose with a 10mm inner diameter, and both branch (outlet) ports fit hoses with a 6mm inner diameter. This lets you split one larger hose into two smaller ones, or join two equal-size branches into one main line.

Brass barbed fittings generally handle working pressures up to approximately 150 PSI for water and air in typical DIY and light industrial applications. Actual pressure ratings depend on hose type, wall thickness, temperature, and how securely the hose is clamped. For safety-critical or high-pressure systems, contact us to confirm suitability for your specific application.

Brass offers good corrosion resistance for most indoor and sheltered outdoor applications involving water, air, fuel, and gas. It is generally not recommended for prolonged exposure to saltwater, highly acidic fluids, or ammonia-based compounds. For harsh outdoor environments, consider applying a protective coating or using stainless steel alternatives.

Brass is typically compatible with common fuels including gasoline, diesel, and kerosene. Always verify that your connected hose is also fuel-rated. These fittings are not recommended for use with aggressive solvents, concentrated acids, or oxidizing agents. When in doubt, consult a qualified technician for fuel system work.

These fittings are designed for use with flexible hoses, including rubber, silicone, PVC, and polyurethane tubing. The barbed profile grips the hose inner wall to resist pull-out. For pressurized applications, always secure the hose with a properly sized hose clamp positioned over the barb area for a leak-resistant connection.

No thread sealant is needed — the barbed design creates a mechanical seal. Installation is typically tool-free: push the hose firmly onto the barb until it seats fully past all ridges. For pressurized lines (air, water, fuel), add a hose clamp over the barb for a secure, leak-free connection. Lubricating the barb with a small amount of water or soap can make insertion easier.