Netafim 1in Combination Air/Vacuum Relief & Continuous Acting Air Vent | 250 PSI Pre-Filters Do NOT plant in the

Do NOT plant in the cubes for 7 days

Lab-tested and proven

Ideal for propagation and early flowering to boost uniformity and plant vigor

Case quantity is what makes that kind of routine checking practical

After using Big Up Powder

Netafim 1in Combination Air/Vacuum Relief & Continuous Acting Air Vent | 250 PSI Pre-Filters Do NOT plant in theOne Netafim Combination Air Vent Covers Both Failure Modes Two jobs live in one body here. On startup the large orifice discharges the column of air running ahead of the water. On shutdown it admits air just as fast, so the line never pulls a vacuum against the emitters. Once the system is pressurized the small orifice takes over as a continuous acting air vent, bleeding off the air that separates out of solution. The body is reinforced UV protected