Rhino Hobby Carbon Filter Size:4" (100mm) / 300mm This is a properly formulated

This is a properly formulated two-part hydroponic feed that doesn't ask you to choose between quality and price

straightforward to use

Measurement range: 5% to 40% moisture

using pure mineral salts and chelated micronutrients so the feed stays stable and usable across a full watering cycle

Does exactly what an extraction system should do — silent

Rhino Hobby Carbon Filter Size:4" (100mm) / 300mm This is a properly formulatedRhino Hobby Carbon Filter Rhino are the worlds leading hydroponics air filter manufacturer. Rhino Hobby carbon filters are made with the same virgin Australian carbon as the premium Rhino Pro range: RC412, but they have a shorter lifespan. Rhino Hobby carbon filters feature a swappable bottom and duct coupler and they should be turned around every 8 12 weeks to even out the wear ensuring the filters last for their full 9 12 months expected lifespan.