Brass Reducing Hose Fittings – Straight, L, T & Y Connectors for Gas & Air Tube

Match the larger port to your main line OD and the smaller port(s) to your branch line OD. For example, a 10-6mm Straight connects a 10mm (≈3/8") main line to a 6mm (≈1/4") branch. When in doubt, measure the outer diameter of your tubing with calipers before ordering — do not rely on nominal or inner diameter measurements.

Choose Straight for inline reductions along a single run of hose. Use L-Shape when you need a 90° direction change. Select T-Shape to split one line into two at a right angle (useful for manifold-style setups). The Y-Shape splits one line into two at an angle, which generally produces smoother flow — often preferred in gas or air distribution systems.

Brass is generally resistant to corrosion and performs well in damp or outdoor conditions. In most cases, these fittings will hold up to rain, humidity, and temperature variation. For highly corrosive environments or saltwater exposure, additional protective measures are typically recommended.

Brass barb fittings of this type are typically suited to low-to-medium pressure applications. The actual working pressure depends on factors including hose wall thickness, clamp type, and the media being conveyed. For high-pressure systems, consult a qualified engineer before installation.

Yes. The size designations (e.g., 8mm, 10mm) refer to the outer diameter of the hose or tube they are designed to fit. They are compatible with standard metric flexible hose commonly used in gas, air, and water applications across DIY and light industrial settings.

For secure, leak-free connections — especially in pressurized gas or air lines — hose clamps are generally recommended. The barbed design provides a strong friction fit, but clamps add an extra layer of security and are considered best practice for any pressurized application.

The Amount option lets you purchase 1, 3, or 5 fittings of the same type and size in a single order. Buying in multiples typically offers a lower per-unit cost and is convenient for projects requiring several connections — such as wiring a multi-tool air supply or installing a garden irrigation manifold.