imported nylon,wear-resistant,flexible,suitable for condenser tubes cleaning, diameter can be 1/4~1", metric M6 brush thread

Specifications:

Available for tube sizes 1/4"-1"

Cleaning Diameter
(inch)	(mm)
0.25	6.4
0.31	7.9
0.38	9.5
0.44	11.1
0.50	12.7
0.56	14.3
0.63	15.9
0.69	17.5
0.88	19.1
0.81	20.6
0.88	22.2
0.94	23.8
1.00	25.4

Condenser Brush (round cleaning brush,copper tube brush,chiller brush)