Hobby Metallic Air Valve 4/6

The Hobby Metallic Air Valve is a metal valve for 4/6mm airline tubing that lets you fine-tune the air flow in your aquarium. Use it to adjust the bubbles from an airstone or the output of an air-driven filter, or as a durable spare part.

Key features of the Hobby Metallic Air Valve 4/6

• Regulates air flow
• Fits 4/6mm airline
• Metal construction
• Practical spare part

Valve or 4-way connector

Two versions are listed: the single metal air valve, which controls the air going down one line, and the 4-way connector, which splits one air supply into four outlets. Both suit standard 4/6mm airline, meaning 4mm inside and 6mm outside diameter. Used together, the connector divides the air and a valve on each line lets you fine-tune the bubbles to each air stone or sponge filter. If you run fewer devices than outlets, cap or valve off the spare outlet, otherwise most of the air escapes there. Keep the fittings above the waterline and use a non-return valve between pump and tank.

Good to know

Fit a non-return valve between the pump and the valve to stop water flowing back.

Hobby Metallic Air Valve 4/6 specifications

• Brand: Hobby
• Product: Hobby Metallic Air Valve 4/6
• Category: Fish Cleaning & Maintenance