GROCO U-Lube Cartridge - 3oz. *2-Pack - ULUBE-3

The GROCO U-Lube Cartridge 2-Pack (ULUBE-3) is a specialized marine lubricant designed to protect and maintain seacocks and ball valves. This proprietary, waterproof grease is formulated with a marine growth inhibitor to prevent barnacles, calcium, and slime from seizing your valves.

Essential Valve Maintenance

Marine ball valves often fail because they are left in one position for long periods, allowing marine organisms to grow inside the valve body.

• Marine Growth Inhibitor: Unlike standard grease, U-Lube actively discourages the growth of barnacles and calcium that can make valves impossible to turn.

• Tacky Waterproof Texture: The grease is designed to stay exactly where it is applied, offering maximum protection against saltwater washout, rust, and wear.

• Versatile Application: While perfect for valves, its high-temperature stability makes it excellent for bushings and bearings exposed to wet conditions.

• Zerk Fitting Compatibility: Injected directly into the valve cavity via a Zerk fitting (standard on GROCO valves since 2016), ensuring the space between the ball and body remains filled with lubricant.

Technical Specifications

• Model Number: ULUBE-3 / 75357

• Size: Two 3 oz. cartridges (6 oz. total)

• Form: Heavy-duty waterproof grease

• Compatibility: GROCO and other major marine ball valve brands

• Weight: 0.5 lbs per pack

Maintenance Tip: To keep your seacocks operating smoothly, it is recommended to "exercise" (open and close) them regularly after injecting U-Lube. Would you like me to find a GROCO Zerk Fitting (ZERK-1) so you can easily apply this grease to your older valves?