
Powerbuilt 620471Powerbuilt 3 Ton Unijack Bottle Jack & Jackstand
Built-in jack stand lock, ANSI standard, and the highest lift range listed at 12 in.
- Lifting capacity
- 3 ton
- Lift range
- 12.0 in
- Weight
- 22.7 lb
The right bottle jack starts with the weight of your vehicle. Pick a capacity that covers it, then check the minimum height so the jack slides under, and the maximum height so it reaches. A named safety standard and an overload valve add protection. A bottle jack only lifts, so always support the load with jack stands. We put 7 products on one spec sheet so you can compare capacity, height range, weight and safety details side by side.
Quick answer
Ranked from 7 bottle jacks that met our standard, compared on capacity tons, min and max lift height, safety standard.
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Built-in jack stand lock, ANSI standard, and the highest lift range listed at 12 in.

The only jack here listing ASME/PASE, with an overload valve and 10.36 lb weight.

Rated 20 tons, but no safety standard is stated and it weighs 18.1 lb.
| Spec | |||||||
|---|---|---|---|---|---|---|---|
| Best Scoreout of 100 | 61 | 52 | 52 | 52 | 47 | 43 | 41 |
| Lifting capacityton | 3 ton | 10 ton | 20 ton (best in row) | 6 ton | 20 ton (best in row) | 12 ton | 12 ton |
| Minimum heightin | 11.0 in | 8.8 in | 9.4 in | 8.1 in | 8.9 in | 7.9 in (best in row) | 9.0 in |
| Maximum heightin | 23.0 in (best in row) | 17.6 in | 17.6 in | 15.8 in | 17.1 in | 16.2 in | 18.0 in |
| Lift rangein | 12.0 in (best in row) | 8.8 in | 8.2 in | 7.7 in | 8.2 in | 8.3 in | 9.0 in |
| Weightlb | 22.7 lb | 10.4 lb | 18.1 lb | 8.6 lb (best in row) | 16.1 lb | 13.3 lb | 13.1 lb |
| Construction | Welded steel | Welded steel | Welded steel | Welded steel | Welded steel | Forged alloy steel (best in row) | Welded steel |
| Screw extension | Yes | Yes | Yes | — | Yes | Yes | Yes |
| Overload valve | — | Yes | Yes | — | Yes | Yes | Yes |
| Safety standard | ANSI (best in row) | ASME/PASE (best in row) | None stated | None stated | None stated | None stated | None stated |
| Carrying case included | — | — | — | — | — | Yes | — |
| Built-in jack stand lock | Yes | — | — | — | — | — | — |
| Horizontal use | — | — | — | Yes | — | — | — |
| Warrantyyears | 1 year | 1 year | 1 year | — | — | — | 1 year |
We reviewed 9 bottle jacks and kept only the 7 that pass every check below. Those are ranked by a Best Score built from spec fit for this job, sales rank.
These reviews are based on specifications and listing information. Each one covers how the jack fits the buyer in our keyword.
A bottle jack and jack stand in one unit
This is the only model on the page that combines a bottle jack with a built-in jack stand lock. A ratcheting safety bar holds the load in the raised position. That matters when you work under a vehicle or level an RV, because the lock keeps the lift in place after you stop pumping.
It lifts 3 tons, the lowest capacity here. That suits SUVs, vans, pickups and jeeps, the vehicles named in its listing. It starts at 11 in, the highest minimum height of the seven, so low sports cars may not clear. It reaches 23 in with a 12 in lift range, both the highest in the lineup.
It carries ANSI as its safety standard and a 1-year warranty. The wide base is meant to reduce sinking on soft ground. The cost of all this is weight. At 22.66 lb, it is the heaviest of the seven, so it is a garage or trailer jack, not a trunk item.
VerdictIt leads our ranking because it is the one jack here built to hold a lift, within a 3-ton limit.
Mid-size jack with the only ASME/PASE listing
This 10-ton jack ranks second on our spec sheet. It is the only product here that names ASME/PASE as its safety standard, which gives you a recognized benchmark to check. It also has an overload valve, so the hydraulic system is protected if you push past its limits. For most buyers, those two points matter more than raw tonnage.
It works from 8.81 in to 17.63 in, with an 8.81 in lift range. The adjustable screw extension adds height on top of that. A 10-ton rating is far above what a car or small SUV needs, but it gives wide margin for trucks and vans. At 10.36 lb, it is easy to move around the garage.
The welded steel body is described as leak-free in the listing, and the saddle is serrated and heat treated for grip. The warranty is 1 year, limited. There is no built-in stand, so use separate jack stands once the vehicle is up. It is the second lightest of the seven. Pair it with stands rated for your vehicle.
VerdictA balanced pick for trucks and vans that want a named safety standard without extra weight.
Maximum capacity, but oversized for most drivers
At 20 tons, this jack ties for the highest capacity on the page. That is far more than a car, SUV or pickup requires, so for most buyers it is a mismatch. It makes sense only if you lift very heavy loads. It ranks third on our list. It has an overload valve and a screw extension.
It starts at 9.44 in and reaches 17.63 in, with an 8.19 in lift range. The 9.44 in start is higher than the 10-ton model's 8.81 in, so it may not slide under lower vehicles. The listing mentions a serrated, heat-treated saddle and welded steel body. Weight is 18.1 lb, second heaviest of the seven.
Safety is the weak point. No safety standard is stated for this jack, while the 10-ton Big Red names ASME/PASE. The maker still lists a 1-year limited warranty. If you only need to lift a car, the smaller sibling gives you the named standard and less weight to carry.
VerdictChoose it for heavy loads only; for everyday cars, a smaller rated jack fits better.
Lightest jack here, with horizontal use
At 8.6 lb, this is the lightest of the seven. That makes it easy to store and carry. It also has the lowest lift range, 7.6875 in, and the lowest maximum height, 15.8125 in. The listing says it is meant for smaller vehicles, and the numbers agree. It starts at 8.125 in, a low start for a car.
This is the only jack here that lists horizontal use, so it can be used lying down. Its capacity is 6 tons, which should cover a car or small SUV. Check your vehicle's weight against that rating before you lift. The saddle is serrated and heat treated, and the listing mentions a bottom valve.
The gaps matter. No safety standard is stated, and the maker doesn't list an overload valve, screw extension or warranty. The 10-ton Big Red lists all three. It ranks fourth, so it suits a light-duty buyer who values weight and a low profile over documented protection. Use separate jack stands for support.
VerdictA light, compact option for small vehicles, held back by missing safety details.
A 20-ton jack with a long screw extension
This jack lists 20 tons, tied for the highest capacity on the page. The listing says it handles up to 44,092 lbs and names box trucks, RVs, pickups and SUVs. Like the other 20-ton model, it is oversized for a typical car, so check your vehicle's weight first.
Height runs from 8.9 in to 17.1 in, with an 8.2 in lift range. The listing adds a 2.4 in screw for fine-tuning the height. Compared with the 20-ton Big Red, it starts lower and weighs less, at 16.1 lb against 18.1 lb. That makes it the easier of the two 20-ton jacks to handle.
It ranks fifth. No safety standard is stated and no warranty is listed in the data. The listing does mention an overload valve, a welded body with a rubber-sealed oil port, a 2-piece handle, and advice to use jack stands after lifting. Treat it as a heavy-duty option, and add stands for support.
VerdictA heavy-duty jack for big loads, but not the pick for documented safety.
Best among the reviewed tools
Check the curb weight of your car or truck, then choose a jack rated above the load it will carry. On this page, capacity runs from 3 tons to 20 tons. A rating far above your needs gives no extra benefit for a car, so check height and weight too.
Compare the minimum height to your vehicle's clearance at the lift point. Then compare the maximum height to how high you need to raise it. Minimum heights here run from 7.9 in to 11 in, and maximum heights from 15.8125 in to 23 in. A screw extension adds some reach.
Only two jacks in the data name a standard: ANSI on the Powerbuilt and ASME/PASE on the 10-ton Big Red. An overload valve is a separate protection for the hydraulic system. Either way, a jack is not a support, so place jack stands under the vehicle before you work.
Extras like a carrying case, horizontal use or a built-in stand help only if you will use them. The VONLX includes a case. The Yellow Jacket lists horizontal use. The Powerbuilt has a built-in stand lock. Skip extras you won't use and focus on rating and height.
Pick a jack rated above your vehicle's weight. A 3-ton or 6-ton model fits many cars and SUVs, and the 3-ton listing names pickups and vans too. Also check that the minimum height is low enough to fit under your vehicle.
No. A bottle jack lifts the load but is not meant to hold it. Set jack stands under the vehicle on solid ground. The VEVOR listing says to always use jack stands after lifting, and the Powerbuilt adds a built-in stand lock.
According to the listings, it protects the hydraulic system from extending beyond its limits. Five of the seven jacks list one. The Powerbuilt and the Yellow Jacket do not list an overload valve in the data.
Only some models allow it. The Yellow Jacket 6 Ton lists horizontal use. The other six do not list it in the data, so check the manual before you lay a jack on its side.
Your own selection is kept in the link, so friends see the same side-by-side.