Superfish 4/6mm Brass Air-Valves

Took my air line apart to clean the pump and these little brass valves made re-routing the tubing effortless, the 4/6mm fit snug without any leaks. They feel properly hefty in your hand, not flimsy like the plastic ones I've had crack before. Solid choice for a reef tank where you don't want surpris

The threads cut into the air line cleanly and hold tight without any leaks, which is exactly what I needed for splitting flow between two tanks. These little brass valves feel solid enough to outlast the tubing they're attached to.

I was worried the brass build would feel flimsy, but these have a real weight to them that gives me confidence in my reef setup. The 4/6mm fit is snug on my air lines, and the control is precise enough to dial in the exact bubble rate I want.