CRB Brush Selection Guide

CRB brushes are color-coded to help determine the proper stiffness and surface application. Selecting the correct brush improves cleaning performance while protecting carpet fibers and hard surfaces.

Brush choice is determined by surface type and cleaning objective — not by machine model. All CRB machines accept brush sets sized to the machine width (12", 15", or 20").

Wear Indicator: Certain CRB brushes include colored bristle strands that serve as wear indicators. As the brush wears down and the indicator becomes visible, it signals that the brush should be replaced to maintain optimal cleaning performance.

Blue – Standard

Best For:

  • Commercial grade level loop carpet
  • Residential synthetic carpet
  • Low cut pile carpet
  • General encapsulation cleaning

Blue is the factory standard brush and suitable for most carpet cleaning applications.

Gray – Soft

Best For:

  • Residential synthetic fiber cut pile
  • Commercial wool loop pile
  • Carpets with wear indicators
  • Fiber-sensitive maintenance cleaning

Gray provides controlled agitation for softer surfaces requiring moderate stiffness.

Green – Stiff

Best For:

  • Commercial synthetic loop pile carpet
  • Deep cleaning of tile and grout
  • Concrete and hard surface soil removal

Designed for heavier agitation where additional mechanical action is required.

White – Extra Soft

Best For:

  • Soft and delicate natural fibers
  • High-end residential carpets
  • Fine area rugs

White brushes are recommended when fiber protection is critical.

Yellow – Extra Stiff

Best For:

  • Severely matted commercial grade low loop carpet
  • Restoration-level cleaning

Not intended for regular maintenance use. Recommended for one-time restorative cleaning only. Consult carpet manufacturer guidelines prior to use.

Brown – Special LVT

Best For:

  • Luxury Vinyl Tile (LVT)
  • Hard surface maintenance programs

Ultra-soft construction designed specifically for LVT applications.

Important Notes:

  • Brushes must match machine width (12", 15", or 20")
  • Blue brushes are included from the factory
  • Additional brush types are available based on application
  • When in doubt, consult surface manufacturer guidance