T-H Marine CeaCap Bulkhead Pass-Thru FittingThe T-H Marine CeaCap Bulkhead Pass-Thru Fitting creates a watertight seal for thru-hull cables, tubing, or wires. This fitting is a great option for transducer cables. Self-attaching - no hardware needed; Turn down washer included; Fits 3/4" hole - slot is 1/4" diameter; Available in black or white; Specifications: 1/4" Slot; 3/4" Hole; 1-1/4" Flange;