4" 909 1ST CHECK ASSEMBLY SKU: 0794097 $1,427.00 Login for better price Select Quantity -+ Add to Cart Additional DetailsResourcesManufacturer: Watts Size: 4 Inch Product model: 909 / LF909 / LF909HW 909 / LF909 / LF909HW Installation and Maintenance Instructions 909 / LF909 / LF909HW Specification Sheet