250mm–350mm Adjustable Twin Flue (6 Inch) – TWPro
Original price was: £89.99.£79.99Current price is: £79.99.
In stock
In stock
Description
250mm–350mm Adjustable Twin Flue (6 Inch) – TWPro, Black, HETAS & UKCA Approved
The 250mm–350mm Adjustable Twin Flue (6 inch) TWPro is a two-piece adjustable pipe with a range from 250mm to 350mm. It features a body soluble ceramic blanket that can be cut to the required length, secured with an integral locking band for a robust, screw-free fit.
Why Choose the Adjustable Twin Flue?
Manufactured from 304 grade stainless steel (outer) and 316 grade stainless steel (inner), both 0.4mm thick, this fully welded adjustable pipe is finished in black for a modern, discreet appearance. HETAS approved and UKCA marked, it’s tested to 600°C and comes with a 25-year warranty. Suitable for all solid fuel, gas, and oil appliances, and designed for use with TWPro twin wall flue systems.
Key Features
Adjustable Length: 250–350mm range, two-piece construction
Custom Fit: Ceramic blanket insulation can be cut to size
Screw-Free Assembly: Secured with integral locking band
Durable Construction: 304/316 stainless steel, fully welded, black finish
Certified & Approved: HETAS approved, UKCA marked, EN1856-1 compliant
High Temperature Resistance: Safe up to 600°C
Warranty: 25 years (conditional), 2 years on paint
System: For use with TWPro Twin Wall Flue parts only
Product Specifications
Type: Adjustable Twin Wall Pipe
Adjustment Range: 250–350mm
Internal Diameter: 6 inch (150mm)
External Diameter: 8 inch (200mm)
Insulation: Body soluble ceramic blanket, cut to fit
Material: 304 Stainless Steel (outer), 316 Stainless Steel (inner), 0.4mm thick
Finish: Black
Locking Band: Integral, fitted to each length
Approvals: HETAS, UKCA, EN1856-1
Warranty: 25 years (conditional), 2 years paint
Additional Information
FREE Delivery: Available on orders over £100. Click here to check delivery information for your area.
For more adjustable pipes and twin wall flue accessories, visit modernstoves.co.uk.
Need help or advice? Ring 0161 439 1400.





