John Guest Reducer Stem Black Acetal - 4mm x 6mm Stem

The John Guest stem reducer is used to reduce the tube size of a fitting. The stem easily inserts into a John Guest push-fit fittings. Fittings are manufactured in black acetal with food grade nitrile O-ring, making them especially suitable for applications involving food and beverage and potable liquids. They are also suitable for air and inert gasses and can be used on CO2 /nitrogen beverage gas lines, pneumatics, vacuum as well as other applications.

Features and benefits

• For use with plastic or copper OD size tubing 
• Acetal body, nitrile O-ring 
• Quick and easy connection/disconnection 
• Food Quality, suitable for potable liquids and pure water
• NSF51 and NSF61 listed 
• Lead free materials 
• Can be used for air/pneumatic and vacuum applications
• Suitable for inert gasses, CO2 and nitrogen beverage lines    

Working pressure and temperature:  

• 230 psi at 68° F 
• 150 psi at 150° F