Quality Tube Supply Ltd.

“LL” Fin

Double “L” fin is used on applications requiring additional protection to the surface of the base tube. It is similarly produced to the foregoing “L” fin, but has a wider fin base which is overlapped during the winding process. Maximum operating temperature 175°C.

Manufacturing Details

Max. Fin Height 3/8″,7/16″,1/2″,5/8″
Max. Fin Density 8-12 fins/inch (488 fins/m)
Max Tube Diam. 5/8 – 2 inches OD
Base Tube Material Carbon Steel, Stainless Steel, Copper,

Copper Alloys, Titanium

Max Tube Length 49 feet (15m)