The Mosmatic 82.623 replaces a damaged, leaky or malfunctioning rotary arm on 300 mm rotary surface cleaners. Also compatible with Allrounder and Universal series surface cleaners. The arm measures 10 inches. Equipped with 3 nozzle holder outlets that feature 1/8" NPTF threading. The arm is constructed with polished stainless steel to ward off corrosion. Handles a maximum pressure of 3988 PSI and temperature of 248 degrees Fahrenheit.