Horti-Control Dust Shroom HEPA 4" commercial-lighting-fixture It features a raised lip

It features a raised lip on the reducer end to provide extra grip on ducting or duct openings

the pH controller measures the pH value of the solution and automatically adds pH adjustment (either acid or alkaline) to change the liquid's pH to the selected level

With optimized design of V1 spectrum

Economical volume pots for commercial growing

Perfect for growing salads and herbs or for early season seed starting

Horti-Control Dust Shroom HEPA 4" commercial-lighting-fixture It features a raised lipThe Horti Control Dust Shroom is a reusable foam HEPA filter designed to keep unwanted pests and pollutants out of indoor gardens and air cooled reflectors. Horti Control teamed up with the leader in foam filter design for to create a filter for indoor gardeners. This revolutionary filter will keep your air cooled reflectors, inline fans, ice boxes and ducting dust free. It will also keep mold, mildew, pests and bacteria out of your garden!