3CFM Single Stage Vacuum Pump Bootstrap Farmer making it super effective at

making it super effective at adsorbing and eliminating chlorine

Spring lock wire and lock channel to keep your greenhouse plastic secure (assumes a single door on your high tunnel)

and enhancing oil recovery

or Germany

Use it alone in hydroponics or try blending it with coir or your favorite planting mix for superior aeration

3CFM Single Stage Vacuum Pump Bootstrap Farmer making it super effective atVE115 Single Stage 3CFM Vacuum Pump This is the BVV Brand VE115 3CFM Single Stage Vacuum Pump. Single stage vacuums pump exhaust into a chamber in the pump, which separates the oil from the pumped gas. Then, the oil is returned and the gas is exhausted. Please refer to these charts for vacuum specifications at altitude and conversions: Vacuum at Altitude Chart Vacuum Conversion Chart Key Features: Internal Check Valve Oil Mist Filter Cap Larger Oil