VEVORMechanical Fuel Meter 20 GPM Fuel Flow Meter 3-Digital Batch Display Fuel Transfer Meter 1 Inch Diesel Fuel Flow Meter All Fuel Transfer Pumps Gasoline Flow Meter

Just received these and spent an entire afternoon fiddling with them and trying to get them to work.First, the 1" FPT (inlet and outlet) will hardly tighten on a 1' MPT fitting. When it does, the MPT is "buried" in the unit's FPT.Second, the meter works at the tank valve with a full 500 gallon diesel tank WITHOUT a hose. Attach a hose to the meter -- it WILL NOT work. I tried FIVE (5) brand new ones, result: same.Three, the "instruction" sheet is not helpful. Explanations are incomplete and not written well. When referencing a part in the narrative it only takes one to a list of parts -- without any pictorial help at all. None.

Seems to be working only pumped 50 though it 30 one time 20 next will see how it holds up over time

Delivered May 28, 2022. Using for an elevated gasoline fuel tank. Has stopped working.

This fuel meter is junk. It doesn't reset to 0.00 it resets at 99.9. No adjustment. Today it started dripping diesel fuel from inside the gauge area after only pumping 138 gallons total. It was dripping about once a minute. I removed it from the system. I wish I didn't buy it.

Worked for a week or two then quit allowing gas to flow through it.