Receiver head assemblies are the connecting link between dispensers/controllers and syringe barrels. They provide a safe connection for accident-proof dispensing and are available with 3 ft (91 cm) or 6 ft (183 cm) of air tubing. The assembly consists of the receiver head with fitted Viton® o-ring, tubing, and male quick connector. Sold individually. Maximum operating pressure 100 psi (6.9 bar). An optional in-line filter (#881-000-000) is available for applications that are not using a fitted piston. In the event that the syringe barrel is turned upside down or dropped, the in-line filter will help to prevent fluids from running back into the dispenser/controller by trapping the fluid within the filter element.