For use with the Valley Canoe Products round rubber hatch cover. Rim lip is 8 inches outside diameter. Inside diameter is 7 3/8 inches. Can be installed on a flat area of the deck 9 1/4 inches in diameter. Use as replacement rim for VCP day hatch. Rim may or may not have screws holes pre-drilled. See the Valley Round Day Hatch Cover for the corresponding cover. CRCK
Instructions are not included, use rim as template. Necky part number 07.2509.000. See a Hatch Install Video demonstrating the install of a similar hatch on a plastic kayak with a contour challenge.
Rim Replacement for Plastic Kayaks at Pinterest (Please note that the "donut" may be needed on some, but not all kayaks).