Beckson Pry-Out Deck Plate Beckson developed the first pry-out deck plate as an access cover to its permanently mounted pump. These pry-out plates were designed with an extra heavy O-ring to assure a water tight fit. Pry-out plates should be installed in areas where internal pressure (oil-canning) is not present. Dimensions: Outside Diameter: 10″ Inside Diameter: 8″ Hole Cut: 8 1/2″ Color: Beige Center Style: Dimple