... . 3.Up to 100% product empty 4.No need for flammable propellants 5.Customized. Specifications: Name Bag on valve ... bag, Valve in bag Structure 1"Valve, Mounting Cup, Outer gasket, Inner gasket, Stem, Spring, Housing, Bag-on-valve connector, Aluminum ... 3)Up to 100% product empty 4)No need for flammable propellan 5)Can be used in all angles 6 ... when spraying CET ISO 9001:2000 Vlave in bag for Pepper spray