Supra Plus

Supra Plus is a single-wall pre-fabricated stainless steel flue system manufactured in the UK by SFL. Supra Plus is specifically designed to meet the demands of the latest high efficiency condensing heating appliances. The system is supplied complete with factory fitted and bonded elastomer seals, offering peace of mind and reduced installation time for the installer.

Suitable For

  • Gas and Kerosene
  • Condensing/ wet applications
  • Internal use


  • Manufactured in 9 diameters (80 – 350mm)
  • 400, 500 and 600mm internal diameter can be specially ordered
  • Push-fit locking system, secured with screw toggle locking band
  • Factory fitted and bonded elastomer seals
  • Manufactured from 0.5 mm 316L stainless steel (1mm for 400mm Ø +)
  • 10 year limited manufacturing defect warranty


Supra Plus BS EN 1856-1 T200 P1 W V2 L50050 O(300)
Supra Plus BS EN 1856- 2 T200 P1 W V2 L50050 O(200)M
Supra Plus (seals removed) BS EN 1856 – 2 T450 N1 W V2 L50050 G(450)M
  Filename Format  
Supra Product Summary Supra Product Summary .PDF
Supra Plus FAQ Supra Plus FAQ .PDF
Supra Plus Brochure 2022 Supra Plus Brochure 2022 .PDF