Features and Benefits:•Leak proof fittings have a Buna-N seal instead of a ball check - for light oils and other fluids up•Redundancy of seal should be provided in critical applications where back pressure must be maintaine•To improve reliability of the check valve in these fittings keep input passages free of foreign part•Up to 5000 lbs. applied pressure1650 Features: -Have steel ball checks and brass insert seats for grease, heavy and medium oils. -To improve reliability of the check valve in these fittings, keep input passages free of foreign particles. -Redundancy of seal should be provided in critical applications where back pressure must be maintained. -Up to 10,000 lbs. applied pressure. Generic Dimensions: -Depth: 39.37'', 0.02 lb. Dimensions: Overall Depth - Front to Back: -39.37 Inches. Overall Product Weight: -0.02 Pounds.