For RV's with space to mount System directly on RV dump valve. Std. model extends 9.5" straight out from valve. 90 degree Twist-on model allows pump positioning to right or left. Permanent install ready when needed. Hard wire to a 20-amp dedicated circuit. Includes patented grey water bypass (std. model only), space-saving 21' long x 1" diameter sewer hose (retracts to 7'), universal nozzle with cap and wiring kit.