ARBRIX F450-X 20 in
#2 in 17 in and upFull review
A 20 in lithium scrubber for supermarkets, schools and warehouses that want hours of cordless cleaning without battery maintenance.
Amazon $2,019$2,019
The ARBRIX F450-X 20 in is the better floor scrubber overall, rated 4.0 to 3.5. The Karhdir RO850 22 in wins on cleaning path and recovery tank. The ARBRIX F450-X 20 in costs $470 less ($2,019 vs $2,489).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Karhdir RO850 22 in
#5 in 17 in and upFull review
A 22 in battery scrubber with 18.5 gal of recovery, for warehouses and large open floors. Its battery runtime is not published.
Amazon $2,489$2,489
Which should you buy?
- Choose the Karhdir RO850 22 in for cleaning path (22 in cleaning path vs 20 in cleaning path) and recovery tank (18.5 gal recovery tank vs 12 gal recovery tank).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 17 in and up floor scrubber; a clear win is highlighted. How we rank explains each one.
| Factor weight | ARBRIX F450-X 20 in | Karhdir RO850 22 in |
|---|---|---|
| Overall rating | 4.0/5 | 3.5/5 |
| Value 30% | 73 $100.95 per inch of path ($2,019, 20 in) | 67 $113.14 per inch of path ($2,489, 22 in) |
| Cleaning path 20% | 69 20 in cleaning path | 85 22 in cleaning path |
| Recovery tank 15% | 92 12 gal recovery tank | 100 18.5 gal recovery tank |
| Runtime 15% | 100 4 h per charge | 0 battery runtime not published, scored as zero |
| Noise 5% | 47 68 dB(A) | 50 sound level not published (neutral score used) |
| Warranty 15% | 25 2-year parts warranty | 25 2-year parts warranty |
Specifications
| ARBRIX F450-X 20 in | Karhdir RO850 22 in | |
|---|---|---|
| Cleaning | ||
| Cleaning path | 20 in | 22 in |
| Squeegee width | 31.5 in | 31.5 in |
| Maker productivity claim (not scored) | 23,142 sq ft/h | 32,000 sq ft/h |
| Tanks | ||
| Solution tank | 10.5 gal | 15.9 gal |
| Recovery tank | 12 gal | 18.5 gal |
| Power | ||
| Power | Battery (lithium) | Battery |
| Voltage | 24 V | - |
| Runtime per charge | 4 h | - |
| Build | ||
| Noise | 68 dB(A) | - |
| Weight | 194 lb | 300 lb |
| Parts warranty | 2 years | 2 years |