Construction : Helically wound, glavanised steel core with enchanced low acid PVC Covering. Features : Highly flexible & largely resistance to oil, acid and sea water. Packing : In spool Standard : As per BS 731 Part I Properties : High degree of safety Colour : Black (Grey on request) Oprating Temprature : 15 c to + 80 c Conduit size (mm) Size I.D x O.D Std. Packing in Mts. Prod. Code no. 16 13 x 17 30 VFI 16 20 17 x 21 30 VFI 20 25 21 x 26 30 VFI 25 32 28 x 33 30 VFI 32 40 35 x 40 30 VFI 40 50 50 x 55 25 VFI 50