Grizzly G350 vs G450: Which Monster Hard Side Cooler Should You Buy?

If you've outgrown the average ice chest cooler and you're shopping at the very top of Grizzly's hard-sided lineup, you've probably landed on two names: the G350 and the G450. These aren't weekend-cooler coolers. They're rotomolded beasts built for big hunts, extreme tailgates, and, increasingly, at home cold plunges.

At first glance, they look like siblings. In practice, one key difference decides which one belongs in your truck bed. Let's break it down.

The Quick Verdict

• Buy the G350 if you want a huge capacity hard side cooler that still fits through a standard doorway, weighs less, and works as a one-person cold plunge.

• Buy the G450 if you want the absolute largest cooler Grizzly Coolers makes, need a wider, tandem plunge tub, and don't mind the extra bulk and weight.

If you stop reading here, that's the whole story. But the details are worth a look before you spend the money.

Specs Head-to-Head

The One Difference That Actually Matters: Width

Look past the headline capacity numbers and you'll notice something. Both hard coolers are roughly the same length (about 60 inches) and similar height. The real gap is width.

The G450 is 38.5 inches wide on the outside versus the G350's 31.25 inches. Inside, that's a 31.5-inch interior versus 21.75 inches. That extra seven-plus inches of girth is where the G450's bonus 100 quarts of capacity comes from, and it changes how you use the cooler.

A wider interior means the G450 can serve as a two-person cold plunge, with deep-and-wide space for full immersion. The G350's narrower 21.75-inch interior is a comfortable single-person fit; plenty for one adult to submerge, but not two.

Portability: Where the G350 Wins

That same slim profile gives the G350 a practical edge most spec sheets skip over: it fits through a standard doorway. The G450, at nearly 39 inches wide, generally won't make that trip without a fight.

Add in the 22-pound weight difference (80 lbs empty vs 102 lbs), and the G350 is meaningfully easier to relocate. The G450 is more of a set-it-and-leave-it monster, great in a fixed spot, a garage, or a truck bed where it isn't moving often.

What Actually Fits: 350 vs 450 Quarts

Quart numbers are abstract until you picture what goes inside. Here's what each cooler actually swallows.

Cold drinks. The G350 holds about 560 twelve-ounce cans. The G450 jumps to roughly 720. That's around 160 extra cans, or about seven more cases, before you've even added ice.

Game. This is where these coolers earn their keep. A boned-out Whitetail deer plus enough ice to preserve it eats up roughly 65 to 75 quarts, so the G350 swallows about four to five large Whitetail bucks and the G450 closer to six. Step up to Elk and the G350 handles a single large boned-out bull elk with ice, while the G450 can handle either a single large boned-out bull elk with ice or two smaller elk. For a serious big-game hauler, either is plenty, but the 450 gives you margin when the harvest is heavy.

Emergency water. Filled to a usable level with a little headspace left, the G350 holds around 75 gallons and the G450 about 95. Using the standard one-gallon-per-person-per-day emergency planning figure, that's roughly two and a half weeks of water for a family of four in the 350, and over three weeks in the 450. Sealed, rotomolded, and lockable, both make a serious short-term reserve if the power or the water main goes down.

The takeaway: the G350 already covers nearly any realistic load. The G450's extra 100 quarts buys headroom for the bigger hunt, the longer outage, or the second animal you didn't plan on.

What They Share

Both coolers are built on the same foundation, so you're not trading away quality by going smaller:

• RotoTough rotationally molded construction: rot-proof, dent-proof, and leak-proof

• Pressure-injected insulation for multi-day ice retention

• Dual 2-inch drains for fast emptying

• Molded-in heavy-duty handles and hinges

• Triple latching system and lock holes for security

• Fork pockets for forklift transport

• Interior divider slots and a shelf edge for organizing

• Embossed ruler on the lid and an integrated lid-prop safety system

• Made in the USA with a lifetime warranty

So, Which One?

Think about where the cooler will live and what you'll do with it.

If it needs to move (between the house, the truck, the campsite) and you mostly need serious capacity without wrestling a doorway, the G350 is the smarter, lighter pick. It's also the right call for a solo cold plunge.

If it's parking in one spot and you want the most space Grizzly sells, or you're building a plunge tub two people can share, the G450 earns its extra bulk.

Either way, you're getting an American-made, lifetime-warrantied cooler that'll outlast almost anything you throw at it. The only wrong move is buying more cooler than you can comfortably move.


Need more ideas of what these coolers can do and have done?

Check out this amazing story of a man whose boat sank in a hurricane and he survived 17 hours floating out in the middle of the Gulf of America in nothing but a Grizzly 450