Designed to greatly improve one of the least desirable functions of the RV experience. Cleanly handle both the black and gray water from your holding tanks with this new self-priming, powerful macerator pump. The pump housing is designed to connect on to the standard 3" sewer adapter. Power leads with plug may be permanently attached to vehicle, or battery clips may be attached for complete portability. Note: Some vehicles require an angle adapter for proper fit. Use this product in accordance with EPA Sanitary Regulations.