D.W. Davies manufactures and sells TKS fluid that is approved for all aircraft using the TKS system. It is packaged in gallons, 5 gallons, 2 1/2-gallon bottles and 55-gallon drums. Shipped worldwide, it is available year-round. It also offers deicing fluid, Type 1 and Type 4. For more information visit www.dwdavies.com or call (800) 888-6133.