Ronseal Advanced Patio & Block Paving Cleaner 5 litre 36784from £16.94 up to £22.03 Compare prices4→Ronseal Thompson's Advanced Patio & Block Paving Cleaner kills moss, mould and algae on most garden surfaces. Active ingredients lift dirt and grime, reviving and brightening the surface to leave it l more→ooking like new. Its enhanced Moss Guard Technology forms an effective protective barrier, preventing moss and mould regrowth for up to 6 months. Coverage: 15-20m² per 5 litre.
