Rig Rite Horizontal Transducer Plate - 4in x 18in Gray. This fish locator accessory from Rig Rite is a perfect mounting surface for installing removing or adjusting transducers to get the maximum performance from your fish locator. You can be assured that the Rig Rite Horizontal Transducer Plate - 4in x 18in won't warp corrode or be affected by sunlight with your simple mounts. Simply mount the plate with two screws and you're back on the water with your confidence. Enhance the performance of your Lowrance fish locator with the Rig Rite Horizontal Transducer Plate - 4in x 18in. Features of Rig Rite Horizontal Transducer Plate - 4in x 18in Dimensions: 4" x 18" Transducer Plate Style: Horizontal Perfect mounting surface for installing removing or adjusting transducers Made from gray Starboard marine grade polymer sheets Won't warp corrode or be affected by sunlight Package Contents: Rig Rite Horizontal Transducer Plate - 4in x 18in Rig Rite 930: Horizontal Transducer Plate - 4in x 18in Gray