FC 18-421N30 18" .030" Nylon Scrub Brush for Factory Cat Tomcat 350D, 52, 5100 Disc Brush Model Scrubbers which use 8 Point Brush Drives. General duty and long lasting .030" diameter level white or black Nylon. An HMP Supply special item. Our customers have asked for a stiffer, longer lasting, general duty scrub brush than the .016" Nylon offered by Factory Cat. These medium Nylon scrub brushes are great for light to medium duty scrubbing of all hard surfaces and some delicate surfaces. For a soft Nylon for very delicate surfaces such as high-gloss epoxy painted surfaces, use our .016" diameter Nylon (FC 18-421N). 17" diameter plastic block (18" scrub path) with an 8-point clutch plate (Please check your model for the proper number of points. We offer a 6 point and 8 point clutch plate. Use 2-421N30 for 6 pt.). Fits Factory Cat and Tomcat 350D (Disc Model), 52 and Tomcat 5100 floor scrubbers. Two brushes are required for model 350D, three brushes are required for models 52 and 5100. Priced Each. Not offered by Factory Cat or Tomcat. Our Part Number FC 18-421N30