Attwood 800 GPH Shower Sump MK2 System - 12V [5143-4] Ronstan Series 50 A pressure gauge operates by

A pressure gauge operates by sending a low amperage current through the gauge's meter to ground via a sending unit with variable resistance

Stud Size (Metric): 2 x 10mm

Ball locking mechanism

Knock Sensor for Mercruiser Inboard Engines: MCM V-6 & V-8 (305

For increased portability

Attwood 800 GPH Shower Sump MK2 System - 12V [5143-4] Ronstan Series 50 A pressure gauge operates by800 GPH Shower Sump MK2 System 12V Attwoods shower sump systems deliver the performance youve been asking for. Choose from standard or large box sizes. They offer fast water flow into and out of the sump. The lid snaps into place to allow quick installation (and removal for cleaning) and includes a gasket to seal the sump box against overflow. The sump box even includes an air vent to prevent airlocks. It meets or exceeds all applicable standards of