Zerk couplers are used as link between injection machines & packers

DETAILS OF HYDRAULIC COUPLERS

• For use with most Hand-operated Grease Guns and Air-Powered Equipment
• Fits all 1/8" NPT threads
• 4500 PSI (310 Bar) Maximum Operating Pressure
• Built-in Spring-loaded Ball Check Valve prevents Leak, Pressure Loss and Lubricant backup
• Four Hardened Steel Jaws for a Superior Seal and Longer Life
• Precision fit. Slight pushing action snaps Jaws onto fittings
• Small outside diameter permits easy contact with recessed Fittings
• Knurled Body and easy flats for easy Installation and Removal
• Zinc Plated for Maximum Protection against Corrosion