With the Kärcher O-ring set, you quickly eliminate frustrating pressure loss and water leaks on your high-pressure washer. Worn or damaged seals reduce cleaning performance, but this 20-piece pack lets you replace them without delay. All twenty O-rings share the exact same dimensions, ensuring you always have the right replacement seal ready during maintenance on high-pressure hoses, spray lances, and trigger guns. This seal kit is designed for Kärcher Professional accessories (HD and HDS) with threaded connections. It keeps your equipment completely leak-free and ensures you maintain full operating pressure with no downtime on the job.