Will work on the following manufacturers machines – Advance Alto Clarke American Lincoln Betco Breuer Tornado Cassidy Clean-O-Matic Centaur Dart Edic Eureka Sanitaire Factory Cat Tomcat General Floorcraft Hako Minuteman Multi-Clean Hawk Hild Hillyard Hoover Huntington Kent Klindex Koblenz Lawlor Mastercraft Mercury NSS Nilfisk-Advance Nobles North American Nacecare Nusource Pacific Steamex Powerboss RPS SSS Standardized Sanitation Systems Tacony Powr’ Flite Tennant Wetrock Thoromatic United Unico Viper White Pullman-Holt Windsor Twister Yellow equivalent to etc. Diamond by Gorilla 1500 Yellow Norton Diamond Maintenance Medium ACS Scrubble Cyclone-D 1500