TERA PUMP TRFA02-MTX Fuel Transfer Pump (2.5 GPM), 4-AA Battery Powered Gas Can Pump, Flow Control Nozzle with Squeeze Trigger Handle for E85 E15 Gas Diesel - Extended 4.1ft Hose

This thing is a game changer for getting gas into my generator. No more accidental spills or getting gas on my hands. It works exactly as described. It’s definitely worth the price. It’s super easy to put on a gas can and the gas flows out at a reasonable pace. I do wish it was a little bit smaller but no big deal. It’s not noisy and overall the design is good. I would definitely buy again. I highly recommend!

I love the quality, function and ease of use of these pumps. They work really well it makes gassing up the boats and snow blower a breeze. They are very easy to use and they fit my 5 and 6 gallon fuel cans perfectly.I normally keep my fuel cans in the garage but the one time I accidently left the gas can out overnight a squirrel or chipmunk chewed through the hose, which you cannot replace or repair. Lesson learned. I love mine and wouldn't use any other pump.

Our local grocery store started offering discounts on gas based on grocery purchases - substantial discounts. But, limited to 20 gallons of gas. My car only holds 14 gallons when near empty so I was leaving $12 or more on the table everytime I filled up with points. I had an old 6 gallon tank and got the bright idea of putting 14 gallons into the car and the remaining 6 into a red gas can. Wonderful idea until I tried to pour gas from the 6 gallon can into the small spout of the car... and had gas dripping all over. What a mess. I got it done, but holding 6 gallons in the air gets tiring after awhile. I wondered about a pump and found this one advertised. I ordered it and received it about 2 days later (very fast shipping). I had to add 4 batteries (AA cells) to the control module. The pump is sized to screw onto 4 different openings of gas cans. Unfortunately, my real old plastic can was not one of the supported sizes. I hung the pump in the opening and tried pumping into my car. It really worked! I could see (and hear) gas surging through the translucent tubing. In about 2 minutes I had pumped almost all of the gas from the can into the car. No gas was spilled in the process. I was so impressed, I went to my local farm and home store and bought a new 6 gallon plastic gasoline can ($14). One of the included adapters was a perfect fit. Now the pump is screwed into the new can and it looks real slick. Looks aside, the performance is what impressed me. There is a grey plastic pump (think the size of a squat cigar) that has rotating blades on the end. This impeller sucks up the gas and forces it through the tube into your cars tank (or tractor, or snow blower, or pressure washer, etc) when the "on" button is pressed. Gas continues to be pumped until you push "off" or the sensor on the tip of the nozzle detects gas flowing back. This is going to be perfect for filling the tractor where the pump nozzle can be clipped vertically to the fill tube for the tractor (or other yard implements). Gone are the days of pouring gas from a can, through a funnel, into a snow blower tank only to have it bubble out and make a huge mess when the tank filled sooner than expected. Now, leave the gas can on the floor and pump it right into the snow blower & let it stop when the tank gets full. When done pumping, hold the nozzle up high (in case any gas is left in the tube can drain back into the tank) and insert the nozzle into a hold on the side of the pump. This keeps the nozzle high (prevents dripping) and clean.While it calls for 4 AA batteries, this pump uses them in parallel. It can actually run on just 2 AA batteries but I think it pumps faster when all 4 are used. I wondered why they didn't use C or D cells, but that would have made the pump housing much bigger. So this works well.Operating temp range is cited to be 5C to 45C (41F to 113F). I keep this in my garage where temps can get down to about 10F. When I tried it, it worked fine. I don't have a lot of experience using it with low temps though.I was also wondering how much gas this pump would leave in the gas can. Turns out, not very much. I removed the pump and poured the remaning gas into my car - I'd guess it was about 1/3 to 1/2 cup that the pump did't get - probably because I didn't tilt the tank so the gas settled in a corner along with the pump.This review is based on my initial impression which is very positive. I can return to update this review as I gain additional experience with the pump through rest of this winter and the seasons yet to come.

I wrote a more thorough Amazon review for this product, but there was a glitch and it got deleted somehow. I don't have the patience or enthusiasm to re-write that whole thing, so instead I am trying again with just some basic facts and considerations.- This is an electrically powered fuel transfer pump. It is powered only from "AA" cells (batteries), and can work with just two of those, but for best pumping power & battery life you can install four of them. For year-round use, I suggest installing Lithium type cells, such as the Energizer Ultimate Lithium brand, because these a tolerate wide temperature range better than alkaline types, and don't have the problem with leakage that unattended alkaline cells do.- The battery compartment is the center piece of the assembly, and contains the cells/batteries, the power ON and OFF pushbuttons, a discharge nozzle storage chamber/dock, and it attaches to the opening on most common North American brands of 1 gallon and 5 gallon plastic fuel cans. Three adapters are included with the product; one of them fits my "Blitz" brand 1 and 5 gallon cans, another of them fit all of my "No Spill" brand cans...I don't know which brand(s) the third one might fit (maybe the Scepter brand?). You find the adapter that fits your can(s) and screw it onto the opening of the can, then screw the battery compartment's threaded fitting onto the adapter.- A flexible intake hose extends from the battery compartment, through its threaded fitting and the adapter, into the fuel can. The actual pump is permanently attached to the end of the intake hose, and is supposed to either hang inside the can or lay on the inside bottom of the can. The flexibility of the hose and the size of the pump housing is such that it will lay on the bottom, more or less on its side, if you are using a 5 gallon can. On a 1 gallon can, the pump and hose will have to fit however it can, but might not have the pump inlet right at the can's bottom, limiting how far down you can pump it empty. On a can larger than 5 gallons, the pump might just hang at the end of the intake hose, without touching the bottom of the can, so there might be some unpumped fuel remaining.- The electrical power for the pump gets to it (from the battery compartment) via a fuel-safe cable that is inside the intake hose. Regardless of how many batteries you install, the maximum voltage in this cable and at the pump is 3V. It is supposed to be safe to have the pump permanently installed on a fuel can and operated as-needed.- Unlike most modern plastic fuel cans, which have a ratchet-type mechanism to prevent accidental unscrewing of the nozzle (and this feature is also supposed to make the cans "child proof"), the threaded fitting and the can adapters of this product do NOT have any such feature. Take care where you locate the fuel tank(s)/can(s) being used with this pump!- The pumped fuel exits the battery compartment via another hose (the discharge hose) which is 34" inches long. Some of the sales text associated with this product suggests that this hose is elastic, or can accordion or telescope to be shorter or longer; I did not find that to be true.....it is 34" inches long, period.- At the end of the discharge hose is a 4" long discharge nozzle, and this is the part you insert into the opening of the fuel container you are trying to send fuel to. This can be the fuel tank opening of an automobile, the top opening of the fuel tank on a lawn mower, snowblower, small garden tractor/riding lawnmower, etc. The nozzle does not have any kind of valve, and does not have any kind of manual control for fueling (as does, for example, the fuel nozzle that gas station pumps have on their hoses)...it is just a 4" long plastic tube. There is a plastic clip molded to the side of this discharge nozzle, and it is intended to hook onto the lip of automobile fuel tank openings, or to the threads on the fuel tank openings on tanks of lawn mowers, etc; so that the nozzle does not accidentally fall out of the tank/can openings during fuel transfer. Pressing the end of the plastic clip springs it up just enough to allow it to disengage whatever it was hooked onto.- Inside the end of the discharge nozzle is some kind of electronic sensor; I think it is just a tiny electrical probe that detects the conductivity of the fuel when it comes into contact. It is connected to the battery compartment via a able that, like the intake hose, runs inside the discharge hose. When fuel touches or comes close to that sensor, it signals the battery compartment circuit to stop the pump. Both the ON and OFF pushbuttons are momentary types, so this sensor acts like a secondary OFF button. In my experiments, the sensor works quickly and well, but see my caveat below. When you are not pumping fuel, the discharge nozzle docks into a tubular chamber on the battery compartment, and a raised plastic ring at the opening of the chamber gives the nozzle's clip something to hook onto.- There seems to be nothing about the design of this product to prevent siphoning. The included operator's manual advises to always have the source tank/can at about the same level as the destination tank/can. This does not mean that the pump cannot push fuel up to higher levels; indeed, it can raise fuel up the discharge hose even if that hose is held straight up vertically from the fuel can that the pump is inside of. This caution appears to be to minimize siphoning. Even if there IS some kind of anti-siphon feature that I missed, there is still the issue of "what happens to all the fuel that is already in the discharge hose when you turn the pump off" (either by the OFF button on the battery compartment, or automatically when the sensor detects fuel at its end)? The answer is: if the discharge hose is horizontal, or if it is sloping upwards from the tank/can where the pump is, the fuel will either stay in the hose or will run backwards into the pump's tank/can. BUT, if the discharge hose is sloping downwards, as soon as the pump is stopped all the fuel in that hose will immediately run out through the discharge nozzle. EXAMPLE: I had a 5 gallon gas can, with the pump inside, sitting on a shelf 2 feet above the floor of my garage. The discharge nozzle was clipped onto the opening of the fuel tank of my walk-behind lawn mower (which was lower than the gas can where the pump was). When the mower's tank got full, the sensor immediately stopped the pump, and then all the fuel in that 38" (34" hose + 4" nozzle) of hose (roughly 1/2" inner diameter) ran out into the lawn mower tank, overfilling it and all that volume of gas ended up on the garage floor. Since that happened in about a second, I did not have time to unclip the nozzle and raise it up above the level of the gas can, which would have stopped the flow. It is better to use this product such that it is pumping at least a little bit higher than the level of where the pump itself is located.- This product seems to me to be of decent quality. No part of it seemed cheaply made. But I do wonder about how well it will hold up over time.- I recommend always rising the discharge nozzle above the pump's tank/can so that all fuel runs back into that tank/can, rather than leaving it inside the hose(s). And also always store the product with the discharge nozzle docked into the battery compartment chamber intended for this purpose, because this will eliminate any chance of siphoning causing a fuel spill while not attended. And this is a "pretty" looking product, with attractive red and green buttons that a child might want to push...if they push the ON button while the discharge nozzle is docked in its chamber in the battery compartment, as soon as fuel starts coming out of the end of the nozzle, the sensor SHOULD immediately shut the pump off again. But best to locate this away from where any children will be while unattended.