Screw in metal ePTFE protective air vent plug breather M20*1.5 vent plug buy it!
$2.00-$2.40
plastic small TPU air valve for inflatable pillow&cushion buy it!
$0.40-$0.80
2W Series Gas/Water/Air/Oil Solenoid Valve,brass and stainless steel body buy it!
$20.87-$30.98
1/4" 6.1mm small non return valve air and water plastic PA66 check valve one way valves buy it!
$0.75-$1.05
3/4'' Inch Farm Agriculture Plastic Vacuum Break Irrigation Air Release Valve
$0.82-$0.95