Plumbing Frostex Plug Kit  . all  outside the usa  purchases  duties, taxes and fees any applicable Clearance Entry Fees (CEF) and other import fees. are the buyers reasonability  The Frostex 9800 FlexFit Plug Kit is designed to work with Raychem Frostex heating cable. This kit includes a ground-fault plug as well as an end seal that seals the cable end that does not plug in. The 9800 FlexFit Plug Kit is required for any heating cable circuit, so it will always be handy to have these spare kits on hand in case of emergencies.