Projectile’s nylon brush tube cleaners represent an industry standard design at industry competitive prices. The nylon brush is perfect for softer condenser and heat exchanger tube deposits such as mud, silt, and slime. The countless number of nylon filaments ensures that softer deposits are effectively agitated and removed from each tube. These brushes are also perfect for internally enhanced tubing in which metal projectiles may not be able to be used. Projectile’s nylon brushes come in both finned end and bi-directional style designs. Nylon brushes are available for condenser and heat exchanger tube sizes ranging from 5/8” to 1 ¼” (15.875mm to 31.750mm) outer diameter (O.D.).