Raritan manufactures equipment for pleasure boats throughout the world

Diameter: 4

MGH17BT 3" Gauge Hole Media Receiver

Available on Sport grille models

It’s easily added to an installed switch by simply unscrewing then replacing the switch face nut

Groco - Backing Block, Part No. BB-3 Battery Raritan manufactures equipment for pleasureEach size fits multiple seacock sizes. Press threaded brass inserts into the hull side of the backing block into the holes that match the seacock flange. Rigid 1 2" thickness provides secure installation but is flexible enough to conform to minor hull curvature. Will not swell or absorb moisture. Fits Seacock Sizes Dia. Insert Threads 2000 & 2500 7. 13 3 8" 16