Groco U-LUBE3 Ulube Grease, 3 oz. marine Plug has a square top

Plug has a square top for use with a socket wrench

upper and lower housing

SFBP1-G2000-01

Recommended for freshwater use

Mercury-Mercruiser 860171B90 DUTCH- GAS BRAVO

Groco U-LUBE3 Ulube Grease, 3 oz. marine Plug has a square topBall valves (in line valve or flanged seacocks) that are "exercised" frequently operate more easily and are likely to remain free of marine growth. The task of regularly opening and closing valves, however, is often neglected because valves are difficult to reach, or because owners just don't feel like it. Consequently, valves are left in one position for months or even seasons, and when the time comes to open or close the valve, the build up of