Powerful flushing at the touch of a button sets the 974MSD Portable Toilet apart from the rest. With no manual pumping or batteries required, these toilets deliver a robust bowl-clearing flush every time. An easy-view level indicator lets you know when to empty the holding tank. High-strength ABS construction withstands the marine environment, and the smooth finish cleans easily. Features a full-size seat, latching lid, and splash-free design. 2.6-gal. holding tank. 2.3-gal. freshwater tank. The 974MSD model includes mounting brackets and a PVC fitting for connection to 1-1/2" ID discharge plumbing for dockside pump-out. Measures 13-1/8"W x 15-1/4"L x 12-1/2"H.