We bought the Bissell Big Green Professional, ProHeat 2X Revolution Pet, ProHeat 2X Revolution Pet Pro+, original Revolution HydroSteam Pet, TurboClean DualPro Pet, and TurboClean PowerBrush Pet for this comparison.

We measured suction, compared tank capacity and weight, and examined hose reach, attachments, brush design, and cleaning modes. Our stain evaluation used photographs taken under consistent lighting after the carpet dried. These were visual comparisons; the older results below were not measured with the colorimeter used in our newer carpet cleaner testing.

You fill the clean water tank with water and the recommended cleaning formula, following the instructions for that model. Holding the trigger releases the mixture as you move the cleaner across the carpet. The brushes loosen dirt and stains, and suction draws the dirty liquid into a separate tank.

Although the cleaning process is similar across these six machines, tank size, cleaning path, weight, and tools affect how much work you can do before refilling or switching attachments. A larger machine may suit several rooms, while a lighter one can be easier to carry and store.

The Big Green Professional held 1.75 gallons, compared with 0.62 gallons for the TurboClean PowerBrush Pet. That difference matters when you want to clean a large area with fewer stops to refill.

The original Revolution HydroSteam Pet and both ProHeat 2X Revolution models in this comparison had 1-gallon tanks. The TurboClean DualPro Pet held 1.25 gallons. These capacities belong to the versions in the earlier comparison.

We saw the Big Green Professional as a strong option for frequent, large-area cleaning. We also valued its build quality and parts availability, although those factors were not included in the scoring algorithm for that competition. Read our Big Green Professional review for that model’s full evaluation.

The Big Green Professional weighed 42 pounds in the earlier comparison, versus 22 pounds for the original HydroSteam Pet. The ProHeat 2X Revolution Pet Pro+ weighed 18 pounds, the Revolution Pet 17.5 pounds, and the TurboClean DualPro Pet 17 pounds.

At 12 pounds, the TurboClean PowerBrush Pet was the lightest of the group. It also had the narrowest cleaning path at 7.5 inches, so it covered less carpet with each pass. The Big Green Professional had a 10.5-inch path; the other four models had 11-inch paths.

For a few rooms or occasional stains, a lighter machine can be convenient. For larger areas, a wider path and larger tank may save time, provided you are comfortable moving and storing the machine.

The TurboClean PowerBrush Pet was the only machine in this comparison without a hose. If you want to clean stairs or suitable upholstery as well as carpet, hose compatibility is a useful place to start.

The Big Green Professional had a 9-foot hose and one attachment. The original HydroSteam Pet and both ProHeat 2X Revolution models had 8-foot hoses and two attachments each. The TurboClean DualPro Pet had a 7-foot hose and one attachment. These were the accessory packages supplied with our tested units.

The original HydroSteam Pet and both ProHeat 2X models used two floor-head brushes. The Big Green Professional and TurboClean models used one, although the Big Green’s brush was larger than the other single-brush designs. Brush count alone does not tell you which machine cleans best; the complete design matters.

Original Revolution HydroSteam Pet: This was the only model in the six-machine comparison that produced steam at the floor head. The image below shows its pretreat mode. For the newer HydroSteam 4123, use our separate 4123 review; the older model’s specifications and results should not be carried over to it.

ProHeat 2X Revolution Pet Pro+: Its CleanShot feature uses a foot-operated sprayer near the floor head to apply solution directly to a stain. It was a distinguishing feature of the Pet Pro+ in this group, so check the exact model rather than relying on similar styling or color.

Water-temperature maintenance and steam generation are different features. Follow the filling instructions for the exact model, and do not assume that a “ProHeat” name means the machine will heat a tank of cold water.

The Revolution models in the earlier comparison offered three modes, the TurboClean DualPro Pet offered two, and the Big Green Professional and TurboClean PowerBrush Pet had one each. Names such as Max, Deep Clean, and Express Clean varied by model.

A key difference between the settings was how much water they dispensed while the trigger was held. Using less water can help the carpet dry sooner, although the appropriate setting depends on the cleaning job. These tested models did not offer the heated-drying feature we discussed in our Tineco carpet cleaner comparison.

We measured sealed suction and usable suction at the floor head. The Big Green Professional, original HydroSteam Pet, and both ProHeat 2X Revolution models each recorded 67 inches of water lift in the sealed suction test. The TurboClean DualPro Pet recorded 57 inches, and the PowerBrush Pet recorded 46 inches.

The order changed in our usable suction test. The Big Green Professional led at 12.09 kPa, followed by the TurboClean PowerBrush Pet at 11.04 kPa and TurboClean DualPro Pet at 8.4 kPa. The ProHeat 2X Revolution Pet Pro+ measured 5.2 kPa, the Revolution Pet 4.5 kPa, and the original HydroSteam Pet 4.24 kPa.

Those results show why we look beyond price and sealed suction. The PowerBrush Pet placed second in usable suction in this group despite being the least expensive model in the original comparison. Suction is still only one part of cleaning performance; solution delivery, agitation, and usability also matter.

We began with light, dried-on dirt stains. All six cleaners removed these almost completely in two passes or fewer. This was an informal demonstration rather than a scored test.

For the tougher evaluation, we prepared stains using 5 ounces of a dirt-and-water mixture and 1.5 ounces of coyote urine, allowing them to dry for 24 hours. The wet stains used 1.5 ounces of red wine and 1.5 ounces of a fluorescent material to make remaining residue visible.

We used the same cleaning-solution mixture for each machine, room-temperature water, and four back-and-forth passes per stain. We did not pretreat these samples. That left more visible residue and helped us compare the differences under the same conditions.

After the carpet dried, we photographed the results using the same camera and lighting settings. We also inspected the fluorescent residue under blacklight.

Our main takeaway was that the visible differences between the least and most expensive machines were smaller than we expected. The original HydroSteam appeared somewhat better in our visual assessment, but the other results were close. This was not a numerical colorimeter result, and it does not describe the newer HydroSteam 4123.

For tough stains at home, follow the machine and cleaning-formula instructions, including any recommended pretreatment. We intentionally omitted pretreatment in this comparison to keep the test conditions consistent.

Bissell ProHeat 2X Revolution Pet Pro+: This is the first-ranked model on this page. In our earlier comparison, the Pet Pro+ combined a 1-gallon tank, an 8-foot hose, two floor-head brushes, and CleanShot in an 18-pound machine.

Bissell Revolution HydroSteam 4123: This is the updated HydroSteam model in the current picks. Our 4123 review covers its performance and features separately from the original HydroSteam discussed in the comparison.

Bissell Big Green Pet Pro: This is the Big Green model listed in the current ranking. The earlier guide tested the Big Green Professional, so the measurements and package details above should be read as results for that tested version.

Bissell TurboClean Pet XL: This is the current budget pick. It was not one of the six models in the earlier competition; see our TurboClean Pet XL review for its evaluation. Do not confuse it with the older TurboClean DualPro Pet or PowerBrush Pet.

Check the live prices and details in the product cards before choosing. To compare Bissell with other brands, see our best carpet cleaners guide.

Use the ranking at the top of this page for our current picks. The video remains a reference for the models and testing discussed in the buying guide.