The RPN4009 self-rotating waterjet nozzle from NLB Corp. cleans pipes and tubes at pressures up to 40,000 psi (2,760 bar). Designed for a minimum pipe diameter of 0.75 inches (1.91 cm), the nozzle is coated with titanium nitride for long life and is available with cutting/cleaning or polishing heads. The nozzle is 4 3/4 inches long (12.1 cm), has a maximum flow of 9 gpm and rotates at 7,000 rpm. 248/624-5555; www.nlbcorp.com.