Piston Head type_bundleitem this mask folds flat to

this mask folds flat to fit in pockets

they wrap gently around the head delivering soft contact points and long-term comfort

HEAVY-DUTY WHEELS: Move your strap roll around as needed without physical strain

GENTLE & SANITARY: Flat-chain conveyor with push bars for minimal product contact and manipulation

Piston Head type_bundleitem this mask folds flat toThe Piston Head is located inside the Main Cylinder. The Piston Head has two O rings (sold separately) which create a seal in order to keep the product from leaking out of the Main Cylinder. Once the product is drawn through the Rotary Valve and into the Main Cylinder the Piston Head will then push the product back through the Rotary Valve and out through the Dispensing Nozzle and into the product container. Product Specifications: Material: Nylon