GARAGE BOSS GB310 Press 'N Pour 1 Gallon Gas Can, Red

I keep a one-gallon can on the shelf for quick top‑offs—string trimmer, mower, the occasional generator run—and that’s where the GB310 Press ’N Pour has been living for the past season. It’s a compact, tidy container that tries to modernize pouring with a press-button spout and built‑in safety features. In practice, it largely succeeds, with a few quirks worth knowing before you buy.

Design and build

The GB310’s red, one‑gallon body has a triangular footprint and a single top handle. The shape keeps the profile slim, which I appreciate on a crowded garage shelf, and it tucks nicely into a milk crate or truck box without rolling. The plastic is thick enough that the can doesn’t oil‑can under hand pressure, and the seams are clean. The single handle is centered and sturdy, though I often support the bottom with my other hand when the can is full; that grip makes precise pours easier.

Capacity is honestly one of its strengths. One gallon is perfect for mixing 2‑stroke fuel or keeping just enough gas on hand without creating a stale‑fuel problem. If you run through small-engine fuel sporadically, this size reduces waste.

The spout: press to pour, release to stop

The defining feature is the self‑venting, press‑button spout. To pour, you seat the nozzle in the tank opening, press the green button to open the valve, and fuel flows; release the button and it shuts off. There’s no separate breather cap to open—air vents through the spout assembly—and a flame mitigation device (a perforated metal screen) sits inside the neck.

When everything is aligned, flow is controlled and predictable. I can feather the button to trickle into a small carb bowl or open it fully for a mower tank. It’s significantly cleaner than old-school cans that glug without a vent, and you’re less likely to overfill because stopping the flow is as simple as letting go.

There are caveats:
- The button spring is on the firm side. With gloves on, I’m fine, but bare-handed or for users with limited hand strength, the initial press can feel stiff.
- Very occasionally, I’ve felt the button track hang up and not spring back as fast as I expected. Keeping the button channel clean and applying a tiny dab of silicone-safe lubricant (never petroleum-based) to the sliding surfaces made it smooth again.
- Like most EPA-compliant spouts, you can get a brief surge if the vent path is partially obstructed. Seating the nozzle squarely and keeping the spout’s internal screen free of debris helps avoid this.

Overall, the spout earns its “controlled flow” billing, but it’s not “fast flow.” If you’re accustomed to pre‑EPA race jugs, plan on a more measured pour.

Safety features that actually matter

The flame mitigation device (FMD) isn’t marketing fluff. It’s a metal mesh that disrupts flame fronts, reducing the risk of flashback into the container—a sensible addition for a can that may live near hot engines and spark-prone tools. Coupled with EPA compliance, the GB310 is engineered to reduce evaporative emissions, limit fuel odors, and contain spills. In day‑to‑day use, I notice far less gasoline smell in the garage compared to older vented cans. It also seals well in transit; lying flat in the bed of a truck between errands, it stayed dry around the cap and spout threads.

Real-world use across small engines

• Mower and snowblower: The nozzle seats nicely in larger filler necks. I can rest the spout lip on the rim and work the button with my thumb, using my other hand under the can for leverage. Flow is steady enough to fill without a funnel.
• String trimmer and chainsaw: For small, awkwardly angled tanks, I appreciate the stop‑on‑release action. It prevents the little whoops moments when the last half ounce overflows the tank. The trickle control is good, though the stiff button takes some finesse in tight spaces.
• Generator: A full one‑gallon top‑off is where the single handle shows its limit. It works, but you’ll want two hands for better aim and to keep a smooth spout angle.

If you often fuel very small openings, a simple flexible funnel still earns its keep. The spout is short enough that some caps and shrouds make direct access tight.

Ergonomics and handling

The top handle is comfortable and textured enough for a secure grip. Because of the triangular body, the can naturally wants to sit on one face; it’s stable on the ground during filling, though not as rock‑solid as a wide rectangular can. The geometry does make one‑handed pours possible, but the happiest setup is hand on handle, other hand supporting the bottom corner. That combination gives better control of both angle and flow.

Weight distribution full vs. half‑full is predictable, and the can doesn’t balloon when left in a warm garage—a sign that the venting and sealing are doing their jobs.

Durability and maintenance

After several months of regular use, the body shows the usual scuffs but no warping, and the cap threads still engage cleanly. The spout’s O‑rings are holding up, and I haven’t seen seepage around the button assembly. If you live with temperature swings or store fuel with high ethanol content, I recommend:

• Periodic inspection: Check the O‑ring and button track every few months. Replace the O‑ring if you notice dampness or a fuel sheen after storage.
• Cleaning the FMD: A quick rinse and air‑dry keeps the screen clear. Don’t poke it with wire; if it’s damaged, replace the spout.
• Don’t over‑tighten: Snug the cap and spout by hand. Over‑torqueing can compress seals and shorten their life.

Parts availability matters with modern spouts. I was able to find replacement spout kits compatible with this model, which extends the can’s usable life.

What could be better

• Button stiffness: A slightly lighter spring or larger button would make long pours less fatiguing and help users with weaker grip strength.
• Two-handle option: A molded lower grab point would make controlled pours into higher tanks easier, especially when the can is full.
• Flow consistency: It’s good most of the time, but occasional surging happens if the nozzle isn’t seated perfectly. A clearer visual cue on correct orientation could help new users.

None of these are deal‑breakers, but they differentiate good from great in everyday use.

Tips for cleaner, safer pours

• Seat the nozzle fully before pressing the button. That aligns the vent path and reduces glugging.
• Keep the spout clean. A splash of fuel on the button track attracts grit; wipe it down after use.
• Store upright and out of sun. Extends seal life and reduces pressure changes inside the can.
• For 2‑stroke mixing, use pre‑measured bottles and shake with the cap on, not the spout, to keep the valve and FMD free of oil residue.

Who it’s for

• Homeowners and DIYers who keep small engines running and want a compliant, low‑odor, easy‑to‑control can.
• Anyone mixing small batches of 2‑stroke fuel who prefers a fresh gallon rather than maintaining larger reserves.
• Occasional users who value spill prevention over sheer pour speed.

If you refuel large tanks frequently, or you need rapid flow at job sites, a larger, purpose‑built utility jug with a different valve design will be faster and less fatiguing.

The bottom line

The Press ’N Pour can strikes a practical balance: safer, cleaner fueling with a controlled spout that’s easy to stop precisely. It isn’t the fastest, and the button action could be friendlier, but it’s tidy, compact, and confidence‑inspiring. After a season of use, mine has stayed dry around the seals, hasn’t stunk up the garage, and has made topping off small engines less of a guessing game.

Recommendation: I recommend the GB310 for homeowners and light equipment users who want an EPA‑compliant, spill‑resistant one‑gallon can with precise control. Its safety features and clean storage outweigh the occasional stiffness and learning curve of the press‑button spout. If you prioritize maximum flow speed or pour heavy volumes daily, look elsewhere; for everyday small‑engine fueling, this is a sensible, reliable choice.