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AParker 8450 Series couplers are ideal for connection under pressure with 8010 Series hydraulic nipples for hydraulic operations in tractors and agricultural equipment & attachments. These couplers feature poppet valves and have steel construction with push-pull sleeve design, zinc & clear trivalent chromate plating and a nitrile seal for corrosion resistance, preventing entry of dust and withstanding a maximum operating pressure of 3000 psi. These couplers can operate in temperatures ranging from -40 to 250 degrees F and allow flow rate of 25 gal/min through them. Choose from a wide range of these couplers, available in male or female threaded end ports for directly mounting to rigid tubing or control valves.