Kratki Flue 45° Coaxial Elbow 100/150


45° acid-resistant double-wall elbow designed for removing fumes from gas-fired appliances.

SKU KG100/150/45/BI-GAS Category Brand


45° acid-proof, double-wall elbow, used to create an air-flue system with a closed combustion chamber.

BI-GAS is a selected and hydraulically optimized solution that also has self-cleaning properties. The system works under vacuum (it is not equipped with gaskets).


  • diameter: 100/150 mm
  • temperature resistance: 600°C
  • equipped with fastening clamps
  • tested at CERIC
  • material: stainless steel (austenitic) 1.4404 inside, (316L, L50), 1.4301 external L20.

Brands we Stock

We pick the very best so you can be assured of the quality. So you can shop with confidence. Browse by brand below.

Kratki Flue 45° Coaxial Elbow 100/150