Netafim 1in Guardian Air/Vacuum Relief Air Vent Rosin + Heat Presses Built-in thermostat

Built-in thermostat

Soak the cubes in this solution for 10 minutes

is expertly designed to improve plant growth by increasing reflectivity and amplifying lighting

Holes: Pre-Cut Hole

Netafim 1in Guardian Air/Vacuum Relief Air Vent Rosin + Heat Presses Built-in thermostatGuardian 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