Mounting holes are 4-7/8" on centers and rear portion has 3-15/16" diameter

Housings are matte black molded polycarbonate

Standard Bowl Dimensions – 14-1/6" H x 18-3/16" W x 16-1/4" D

Self-Adhesive Mounting Pads Included• Reversible Bracket allows a mounting range of over 300 degrees from overhead

Low Pass Electronic Crossover

Marine Hardware - Mushroom Thru-Hulls, Part No. THMR.200-BM Norcold Mounting holes are 4-7/8" onThese unique thru hulls are CNC machined with straight pipe thread which blends into NPT tapered pipe thread for the last four threads so they mate with virtually any piping or valve without the need for adapter connections to make a good seal. Size OD Length 2"