• Highlight: Genuine Hydro-Force inner shell and brush that restores the Gekko SX-7 AR51G head to factory cleaning performance, re-establishing the tight spray seal and brush contact a worn head loses over time.
• Best For: Tile, grout, and hard-surface cleaning pros who run the Gekko SX-7 daily and want to refresh brush and shell wear instead of replacing the entire head.
• Expert Note: The SX-7 head cleans best at 800-1,000 PSI; a fresh inner shell and brush re-establish the close-tolerance contact that keeps water recovery strong at those operating pressures.