Helical Spiral Wound Finned Tube is available in lengths up to 18 meters. The Finned Tube is made using quality grade base tubes of carbon steels, stainless steels, copper and copper alloys. The Finned Tube comes in various surface finishes like grit blasting, zinc thermal spray galvanizing and phosphating. The Helical Spiral Wound Finned Tube comes with 5 FPI to 12 FPI.