Danfoss produces strainers for fluorinated and natural refrigerants, in both non-welded and welded versions. Strainer type FA with interchangeable filter insert is used in lines carrying fluorinated refrigerants, ammonia, water, brine, oil, and gas, and are available in versions with flange mounting, or direct mounting. Strainer type FIA are a range of angleway and straightway strainers for use in systems with HCFC, HFC, ammonia, CO2 and all flammable refrigerants