Water Marbles 2 Color Liquid Motion Timer is a great visualization aid to show how water and oil don't mix. It's full of zigzagging, liquid motion fun. Turn this desk toy over and watch the 2 colored liquid drops make their way down the zig zag steps all the way to the bottom.

Mercury Marine 40/50/60 hp 4-Stroke EFI Oil Change KitMercury oil change kits contain industry-leading Mercury 25W-40 Marine Engine Oil. Over five years of engineering and development went into the exclusive Flagship Protection formula which features a high-tech, advanced set of anti-wear additives...

Mini Ball Valves by DuraChoice are available in brass at a definite cost savings over Stainless Steel. Brass mini ball valves work well in most situations. These 200 psi (water, oil and gas) valves are great for projects that need a compact design. The quarter-turn lever is small enough to fit in a...

The Versachem Heavy Duty Fuel Tank Repair Kit permanently repairs gasoline and diesel fuel tank leaks in less than 20 minutes. Use it to repair pinholes, rust-outs, hairline cracks and holes up to 1/2" in diameter. Resistant to water, gasoline, diesel and kerosene. No draining and no welding require...

The best way to tether small flashlights for easy use and access, while preventing loss. Strong enough to hold a 4-AA flashlight on the surface, yet easy pull for extending underwater without fatigue. Flashlights are secured to the diver and always in the same place, easy to use. Does not restrict t...

PC-7 is the tough job epoxy. This paste epoxy was formulated for maximum bonding power. When mixed, components A (grey) and B (black) reacts to form a bond of tremendous strength. PC-7 formulation provides extended working time, for large and critical jobs, which allow the user to reposition work or...

This under-cowl, in-line fuel filter fits many Mercury and Mariner outboards replacing contaminated filters and is mounted under the engine cowl. The translucent plastic cased filter allows you to check for fuel content and contaminants. Don’t let water moisture or other fuel contaminants rob horsep...

Enjoy music in high humidity areas like the bathrooms, laundry rooms or covered patios with this single, dual voice coil water-resistant 6½"in-ceiling. This single in-ceiling speaker has a high power handling of 150 Watts and is great for covered porches and patios! What Is a Dual Voice Coil Ceiling...

America's most trusted holding tank deodorant, Aqua-Kem is well known in the RV and marine industries as a dependable holding tank treatment and is known to work around in all weather conditions. Aqua-Kem is a 3-in-1 product, deodorizing, breaking down waste and cleaning Deodorizer - Formulated to...

This Valterra 200-07F check valve is made of white schedule 40 PVC (polyvinyl chloride) for strength and resistance to corrosion and mild chemicals. Its EPDM (ethylene propylene diene monomer) seal resists degradation caused by water and oils, and the swing/spring construction of this valve makes it...

Ultra-Performance Grease (UPG) is a high performance, multi-service, aluminum-complex, synthetic grease which significantly increases bearing life and equipment reliability. It also makes bearings run smoother, cooler and quieter. UPG satisfies a wide range of grease requirements from the lubricatio...