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- RCW 4 Extra vs Dual
Kärcher RCW 4 Extra vs KLAMER Dual
What RCW 4 Extra does better (0) and where Dual wins (0) — every spec side by side.
vs
Why is RCW 4 Extra better than Dual?
RCW 4 Extra has no measurable advantages in this pair.
Why is Dual better than RCW 4 Extra?
Dual has no measurable advantages in this pair.
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 5,000 Pa | — |
| Noise level | 77 dB | — |
| Mopping | ||
| Water tank (robot) | 150 ml | — |
| Size & weight | ||
| Width / diameter | 264 mm | — |
| Length | 256 mm | — |
| Weight | 1.5 kg | 1.6 kg |
| Colours | White, Black, Yellow | White |
| App & smart home | ||
| Remote control | Yes | Yes |
| Window cleaning | ||
| Water spray | Yes | — |
| Backup battery (power cut) | Yes | — |
| Safety rope | Yes | Yes |
