Main trade-off
BISSELL TurboClean Pet XL
The brush system is simpler than the larger Revolution machines.
Head-to-head
The 3746 fits larger rooms because its one-gallon tank reduces refills. The 3948 is the better apartment machine at roughly 14 pounds and still includes a seven-foot hose for furniture.
Before you choose
Main trade-off
The brush system is simpler than the larger Revolution machines.
Main trade-off
The smaller tank interrupts broad cleaning jobs more often.


One-gallon capacity against a lighter compact upright.
The practical choice turns on clean capacity and weight, then on the constraints in your own setup.
Before you choose
TurboClean XL holds a gallon of clean solution, which is roughly 8.3 pounds of water before adding the machine or recovered liquid. The smaller TurboClean lists an approximately 14-pound body, but the reviewed records do not establish a matched full working weight. Choose XL when longer level-floor sessions make its larger tank useful. Choose the compact model when carrying is the main concern, after checking the complete filled configuration.
A gallon is nominal storage, not a guaranteed cleaned area. The absence of a comparable XL body weight prevents calculating a precise carrying advantage for the smaller model.
The compact TurboClean's seven-foot hose can reach a limited run of steps while the body stays on a stable landing. XL also supplies hose tools, but a bigger floor tank does not lengthen the staircase within reach. Choose by where the machine can safely sit and whether the actual hose reaches the work. If no stable placement is available, neither upright package is confirmed suitable for that stair job.
This turns accessory presence into a reach constraint. Hose length is a working envelope, not permission to balance the cleaner on a step or stretch the hose under tension.
Winner by situation
For clean capacity, BISSELL TurboClean Pet XL records “1 gallon” and BISSELL TurboClean PET records “Compact tank”. This changes how often the job pauses for refilling, emptying or another batch.
For weight, BISSELL TurboClean Pet XL records “Larger XL chassis” and BISSELL TurboClean PET records “About 14 pounds”. This matters when the product must be lifted, moved, transported or stored after use.
Its portable form or long attachment hose is practical on steps and landings.
Its body and cord store in less floor area than a commercial-style upright.
Its capacity, cord and cleaning path reduce interruptions across a larger job.

BISSELL, 3746
A lighter upright with a one-gallon tank and hose tools for furniture and stairs.

BISSELL, 3948
A roughly 14-pound upright with a four-row brush and a seven-foot tool hose.
Meaningful differences
| What changes | BISSELL TurboClean Pet XL | BISSELL TurboClean PET | Why it matters |
|---|---|---|---|
| Clean capacity | 1 gallon | Compact tank | This changes how often the job pauses for refilling, emptying or another batch. |
| Weight | Larger XL chassis | About 14 pounds | This matters when the product must be lifted, moved, transported or stored after use. |
| Brush | XL upright system | Four-row DeepReach | Match the working hardware to the material and task. The component label alone does not prove a better result. |
What you give up
What the facts say
Useful conclusions from the current carpet cleaners comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| BISSELL TurboClean Pet XL |
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| BISSELL TurboClean PET |
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A full room is the usual job
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