Aerosol can valve 1)Stem:Plastic,Metal 2)Dosage:25,35,50,75,100ul,120ul,150ul 3)Use:Air freshener 4)20mm aluminum ... cap 20mm Metering Aerosol Valve/ Metered ValveMetering valve of 20mm diameter. Fitted with ... aerosol products like perfume or other sprays. Aerosol valve Product: 20mm metering valveDosage: 100ul, 75ul, 50ul and 35ul ...