3/4" 4000B 2nd Check Assembly SKU: 7016642 Alternative SKU: 0887001 $53.50 Login for better price Select Quantity -+ Add to Cart Additional DetailsResourcesManufacturer: Ames Size: 3/4 Inch Product model: 4000B / LF4000B, 4000BM2 Installation and Maintenance Instructions Specification Sheet Relief Valve Discharge Rates