Alpha wire fit3503 16 cl103 heat shrink tubing transparent packs of 25 alpha wire fit3503 16 cl103 p the alpha wire fit3503 16 cl103 is a heat shrink tubing that has a good chemical resistance tensile strength and excellent heat resistance characteristics the transparent heat shrink has been manufactured from irradiated pvdf kynar and is supplied in 122cm 4 ft lengths in packs of 25 p p the fit reg 350 has excellent chemical resistant qualities and is non corrosive and is resi