Rule 7700D GPH Evacuator Pump - 12V Clearance The ST1610 series features two

The ST1610 series features two nitrogen gas actuators per plate providing increased stern lift and twice the reactive dampening

As you push down harder on stubborn spots

Increased bowl size

each version features a 1/2-inch central rod

Rule 7700D GPH Evacuator Pump - 12V Clearance The ST1610 series features twoRule 7700D GPH Evacuator Pump 12V Rule's latest Evacuator Pump is ideal for fast evacuation of water from a vessel. Long a favorite of tow boat operators, the 7700D is comprised of two 4000 gallon per hour pumps in tandem, with a net volume at open discharge is 7700 gallons per hour. No more hoping to start a gas powered "crash" pump. Just connect the two sets of power leads to a 12v battery and the pump starts working. A 3" discharge hose is required