Cen-Tec Systems 90177 Central Vacuum Direct Connect Electric Hose with Hose Sock and Applied Anti-Microbial Spray, 35' 100% Cotton Made in the USA or Imported Direct Connect Hose End with a 2 Pin-Prong to attach directly to the inlet valve Compatible with major brands of central vacuum, including Beam, Nutone, Electrolux, Hayden, VacuMaid, Aggressor, Vacuflo, MD, Canavac, Cyclovac, Air Vac. Comes applied with SmartShield antimicrobial spray The Antimicrobial Spray bonds with the surface of the attachment, creating a microscopic layer of organic bristle shafts proving inhospitable to mold, mildew and bacteria The antimicrobial spray is EPA registered and is odorless, colorless and will not wash off under normal use; It protects the tool for a year or more This hose is not compatible with Vacuflo 4940 two pint and micro-switch inlet valves. Nor is it compatible with Hayden electric accessories sold before 2013, unless the electric wand set is replaced