Pureflex Lined Hoses & Fittings PTFE-Lined FEP-Lined PFA-Lined Plastic-Lined Hoses Corrosion Resistant Chemical Transfer Hoses Flex Hoses PureFlex ProFlex Lined Hose was developed as an extremely flexible chemical transfer hose. The open pitch spiral convolutions aid in the draining, flushing and cleaning of the hose. This versatile hose is available with either a high tensile strength high temperature stainless steel braid or corrosion resistant user-friendly polypropylene braid. Applications include the transfer of corrosive chemicals, flexible steam lines, acid handling, the circulation of hot oil, the handling of solvents, high temperature air and conveying of monomers in the manufacturing of plastics. PFA has the same chemical compatibility as PTFE and has much better flex life than that of FEP.