The brush designed specifically for cleaning ropes
 
One brush for all rope diameters.
Beal's ROPE BRUSH was created specifically for cleaning ropes and is easily adapted to different rope diameters. To use it, screw the brush onto the rope and then slide the rope while holding the brush firmly in the water. Your rope will come out looking like new!
 
Can be used with Beal 'Eco Friendly' Rope Cleaning Fluid - advertised separately.