6" 757 1st or 2nd Check Rubber Kit SKU: 0899203 $90.00 Login for better price Select Quantity -+ Add to Cart Additional DetailsResourcesManufacturer: Watts Size: 6 Inch, 8 Inch Product model: 757 / 757N, 757DCDA , 957 / 957N / 957Z Installation and Maintenance Instructions Specification Sheet 757 & 757DCDA 212'' 6'' Backflow Preventer Repair 757 & 757DCDA 8'' 10'' Backflow Preventer Repair