The catch
BISSELL TurboClean Pet XL
Its brush system is more basic than what the bigger Revolution machines have.
Side by side
Larger rooms suit the 3746, since its one-gallon tank means fewer refills. For an apartment, the 3948 is the better machine. It weighs roughly 14 pounds and still has a seven-foot hose for furniture.
Before you buy
The catch
Its brush system is more basic than what the bigger Revolution machines have.
The catch
On big jobs, the smaller tank forces more stops.


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A lighter compact upright against one-gallon capacity.
This one comes down to clean capacity and weight first, then to the limits of your own setup.
Day to day
A gallon of clean solution in TurboClean XL is roughly 8.3 pounds of water before the machine or recovered liquid is added. The smaller TurboClean lists an approximately 14-pound body, but the reviewed records do not establish a matched full working weight. XL is the choice when longer level-floor sessions make its larger tank useful. The compact model is the choice when carrying is the main concern, once you have checked the complete filled configuration.
Nominal storage is what a gallon is, and it guarantees no cleaned area. Without a comparable XL body weight, a precise carrying advantage for the smaller model cannot be calculated.
A limited run of steps is within reach of the compact TurboClean's seven-foot hose while its body stays on a stable landing. XL also supplies hose tools, but a bigger floor tank does not stretch the staircase within reach. Decide by where the machine can safely sit and whether the actual hose reaches the work. Without a stable placement, neither upright package is confirmed suitable for that stair job.
Accessory presence becomes a reach constraint here. Hose length defines a working envelope. It is not permission to balance the cleaner on a step or stretch the hose under tension.
Which one fits
BISSELL TurboClean Pet XL lists “1 gallon” for clean capacity, while BISSELL TurboClean PET lists “Compact tank”. This sets how often you stop to refill, empty or start another batch.
BISSELL TurboClean Pet XL lists “Larger XL chassis” for weight, while BISSELL TurboClean PET lists “About 14 pounds”. This matters if you will lift it, move it, take it somewhere or put it away after each use.
On steps and landings, its portable form or long attachment hose is practical.
Less floor area is needed to store its body and cord than a commercial-style upright.
On a larger job, its capacity, cord and cleaning path mean fewer interruptions.

BISSELL, 3746
Hose tools for furniture and stairs and a one-gallon tank come on this lighter upright.

BISSELL, 3948
A four-row brush and a seven-foot tool hose come on this roughly 14-pound upright.
Spec by spec
| Spec | BISSELL TurboClean Pet XL | BISSELL TurboClean PET | In practice |
|---|---|---|---|
| Clean capacity | 1 gallon | Compact tank | It determines how frequently you have to refill, empty or begin a new batch. |
| Weight | Larger XL chassis | About 14 pounds | It counts if you plan to lift it, move it, travel with it or store it after every use. |
| Brush | XL upright system | Four-row DeepReach | Choose working parts that suit your material and your task. A component's name is no proof of a better result. |
Trade-offs
By the numbers
What we found across the carpet cleaners we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| BISSELL TurboClean Pet XL |
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| BISSELL TurboClean PET |
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Ready to buy
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You typically clean a full room
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