Description
Single Wall to Twin Wall Flat Adapter (5 Inch) – TWPro, Black, HETAS & UKCA Approved
The Single Wall to Twin Wall Flat Adapter (5 inch) TWPro is a universal adaptor designed to connect an appliance outlet, single wall connecting flue, or vitreous enamel pipe to the TWPro twin wall system. Its flat design enables the shortest possible transition, with an effective length of just 44mm—ideal for installations where space is limited.
Why Choose the Flat Adapter?
Manufactured from 304 grade stainless steel (outer) and 316 grade stainless steel (inner), both 0.4mm thick, this fully welded adapter 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
Universal Adaptor: Connects single wall or vitreous enamel to TWPro
Flat Design: Instant, shortest-length transition (44mm effective length)
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: Flat Adapter
Effective Length: 44mm
Internal Diameter: 5 inch (125mm)
External Diameter: 7 inch (175mm)
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 adaptors and twin wall flue accessories, visit modernstoves.co.uk.
Need help or advice? Ring 0161 439 1400.
