Netafim 3/4in Guardian Air/Vacuum Relief Air Vent GrowersHouse Using this item in an

Using this item in an unrecommended can void the warranty

Weight: 325 lbs

Includes: 1L of Soil A & B (One Liter of each)

Get double the grow room assistance with this waterproof alternative to metalized film

designed to enhance the support and organization of your 4x4 grow tents

Netafim 3/4in Guardian Air/Vacuum Relief Air Vent GrowersHouse Using this item in anGuardian Air Vents from Netafim provide maximum protection with proper placement in your irrigation system. The large capacity vents provide outstanding performance in venting air at start up and preventing vacuum issues at shutdown. Guardian Air Vents are used downstream of valves, at the manifolds to break vacuum at system shutdown and on any sloping terrain to prevent vacuum issues when pipes drain. Also used upstream of valves to release air at