3M 3M-27605 Radial Bristle Brush Grade - 50, Size - 6 x 1/2 hand-protection NIOSH approved against certain organic

NIOSH approved against certain organic vapors and non-oil and oil particulates

it is helpful to clean the pool before testing to avoid leaks being plugged by dirt or debris

Sharp pleat folds maximize spacing between pleats

Also fits Pentair quad pool and spa D

3M 3M-27605 Radial Bristle Brush Grade - 50, Size - 6 x 1/2 hand-protection NIOSH approved against certain organic3M 3M 27605 Radial Bristle Brush Grade 50, Size 6 x 1 2 Excellent replacement for wire brushes no flying wires yet higher cut rates Use on bench motors for general purpose cleaning Very strong and flexible Comes with adaptors for multiple shaft sizes (1 2", 5 8", 3 4", 7 8", 1", and 2") Green bristle brush contains 50 grade mineral MOS: 6,000 rpm For industrial occupational use only. Not for consumer sale or use