MP-22-29 TruCLEAN Polyester Cleanroom Mop is constructed of continuously woven polyester fabric, individually packaged and laundered in a class 100 cleanroom facility. Compatible with gamma, ETO and autoclave sterilization. Dampen prior to autoclaving. Also launderable in a standard washing machine. Specifications: 25 Mop Heads/Case. Sold per case. Manufacturer: Perfex Manufacturer Item #: 22-29