SEDY Lubricant Fluid Transfer Pump,Transmission Fluid Pump,Gear Oil Pump for Gallon Bottles & Wide Mouth Quart Bottles,Differential Fluid Pump,Hand Transfer Gear Oil,Transmission & Differential Fluid

Does not fit large mouth bottle, but stick the pump in there and it works.

if the 'fits gallon jugs' is a priority, then don't buy it. But if you can live without that convenience, then this little thing is just what the doctor ordered. one tip i would make is on its first use you may have to prime it, but after that it worked as advertised. hey guys, it's less that $10 and if it just gets you through one chore, then be happy, buy 2 and be ready.

This pump is very similar to a hand transfer pump I have used for 25 years. This new version does not transfer low viscosity fluids (water, thin hydrocarbon solvents) as well as the old pump because the check valve on the bottom of the pump has changed. The old version had a viton 'foot' valve that sealed well regardless of the fluid viscosity. The new version uses a metal ball and tapered seat; it doesn't seal well for thin fluids. The pump is a decent value. The included tygon tubing has a very thin wall and is permanently crimped from being bent in the package over time.

Great product. I used it to replace the differential oil.

Bought this to use on a one gallon jug of valvoline gear oil to fill my rear differential. No, it didn’t screw onto the top of the jug because the jug opening is too big. It still worked great. Pump is meant to screw snugly on a quart bottle. The extensions worked good getting at the bottom of the jug.

AVOID!!! I don’t leave many written reviews but if I can help someone avoid some pain I will. There’s a bunch of other pump options out there so I say try them instead of this. Why???Well it doesn’t fit on standard gallon containers like it says on the package. Ok well maybe you can still use it but careful not to tip it over. Wrong! I pumped and pumped and pumped. I must have pumped at least 50 times to get an ounce or two of fluid out of the jug. The pump is clearly defective. I’ve used similar pumps and this one is trash. I even took it apart to see if I could find a seal out of place or kinked or something. Everything looked normal but it still doesn’t pump. Lastly even if it would have worked the longer of the 2 tubes still wouldn’t have gotten anywhere near the bottom of my gallon container.TL/DR Doesn’t fit gallon containers like it claims. Even if it did the long tube barely goes 3/4 of the way down into the bottle. Finally the pump didn’t actually work. It barely spits and it definitely doesn’t flow. It would take you a vigorous pumping 30 minutes to clear anything close to a gallon of fluid.

Products ok its gets the job done for the price. The sucken isn't that great only gets half way though the bottle till it starts to not work well even worst in tight spots

This works as it should.

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works as it should, no complains