Bed combination pockets designed to house charging post, battery disconnect switch and optional air coupler in one convenient location. Handcrafted in house from 18 gauge steel. Offered in raw finish only. Dimensions are 8.5x4x4 at the box and flange 10.5x6.25 for the dimpled and 10x5.5 for the smooth. Available with or without terminals and battery switch. Add coupler option includes made in USA Milton I/M style coupler and 1/4" NPT bulkhead. Parts are built to order, please allow 2-6 weeks for delivery.