PH PowerFlush Electric Marine Bowl - 12V - White All units have a dry flush option and may be mounted above or below the waterline. Reversible pump mounting available for left hand operation. Available in both Marine and Household bowls sizes.Features:PH PowerFlush electric model can be switched to manual superflush within minutes.Upgrading to PH SuperFlush and PowerFlush is fast and easy! Mounting base configurationmatches the bolt pattern used on most competitive toilets.Clear the bowl with less strokes! Our robust double action piston pump is 66% larger than competitive models making its use quick, easy and efficient.Trouble free operation! Proprietary full size 1½” joker valve is specially designed to maintain pump performance.Slow close seat design - Seat locks in place while boat is rocking, no more slamming seats