RUPES BigFoot LHR21 Mark V
A 21 mm polisher for big, flat panels on trucks, vans and boats, for professionals who already own a smaller machine for tight spots.
Amazon $594$594
The RUPES BigFoot LHR21 Mark V is the better dual action car polisher overall, rated 3.4 to 3.1. The RUPES BigFoot LHR21 Mark V leads on correction. The RUPES BigFoot LHR15 Mark V costs $42 less ($552 vs $594).
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.
RUPES BigFoot LHR15 Mark V
The detailer’s benchmark 15 mm polisher, for professionals who polish every day and want a light tool with a long cord.
Amazon $552$552
Which should you buy?
- Choose the RUPES BigFoot LHR21 Mark V for correction (21 mm orbit vs 15 mm orbit).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every corded long-throw dual action car polisher; a clear win is highlighted. How we rank explains each one.
| Factor weight | RUPES BigFoot LHR21 Mark V | RUPES BigFoot LHR15 Mark V |
|---|---|---|
| Overall rating | 3.4/5 | 3.1/5 |
| Correction 30% | 100 21 mm orbit | 62 15 mm orbit |
| Value 25% | 1 $594 | 5 $552 |
| Warranty 15% | 100 5-year warranty | 100 5-year warranty |
| Power 10% | 14 500 W | 14 500 W |
| Weight 10% | 66 5.4 lb | 70 5.2 lb |
| Features 10% | 15 cordless or a 20 ft+ cord | 15 cordless or a 20 ft+ cord |
Specifications
| RUPES BigFoot LHR21 Mark V | RUPES BigFoot LHR15 Mark V | |
|---|---|---|
| Polishing | ||
| Orbit diameter | 21 mm | 15 mm |
| Speed range | 3,000-4,500 OPM | 3,000-5,200 OPM |
| Backing plate | 6 in | 5 in |
| Forced rotation | No | No |
| Power | ||
| Power source | Corded | Corded |
| Motor rating | 500 W | 500 W |
| Cord | 30 ft | 30 ft |
| Brushless motor | Not listed | Not listed |
| Controls | ||
| Constant-speed electronics | Not listed | Not listed |
| Soft start | Not listed | Not listed |
| Lock-on trigger | Not listed | Not listed |
| Build | ||
| Weight | 5.4 lb | 5.2 lb |
| Pads or polish included | No | No |
| Warranty | 5 years | 5 years |