American Hydroponics Ball Valve, 1/2", pack of 10 Check our large collection and

Check our large collection and find the size that matches your carbon filter

These filters are light weight and incredibly effective at removing the most potent and dankest odors

Magnesium is essential for chlorophyll production in plants

These filters also feature superior two-stage air filtration design: air is filtered once as it enters the filter

American Hydroponics Ball Valve, 1/2", pack of 10 Check our large collection andAmerican Hydroponics 1 2" Ball Valve (Stopcock valve) with barbed fittings. Comes in packs of 10. This black 1 2 inch nylon inline ball valve with double sided barbed fittings is perfect for adjusting flow rates.