Sea-Dog 4227901 Smart Dual Battery Isolator, 12V $21.25=+$5.71 leave the Compartment Sewer Hose

leave the Compartment Sewer Hose connected to your waste outlet and connect your sewer hose to the lug fitting on the end of the Compartment Hose

x 2-5/8 deep

Fan unit has a long life thermally protected motor

Audible and visual alarms let the boater know when a shallow or deep water condition exist

Convenient mounting

Sea-Dog 4227901 Smart Dual Battery Isolator, 12V $21.25=+$5.71 leave the Compartment Sewer HoseThis Smart Dual Battery Isolator is ideal for dual battery applications. Allows two batteries to automatically charge at the same time and then isolates the batteries, ensuring the starting battery is always charged and ready for use. Automatically engages or disengages the circuit at pre set voltages by sensing the input voltage generated, eliminating the possibility of discharging the primary starting battery. Cut in voltage: 13. 3V. Cut out