All of TWPro components found in the range below have been manufactured with an internal diameter of 125mm (5 inch), a 30mm layer of compressed Rockwool insulation and an outer diameter of 175mm (7 inch). Therefore, brackets, supports, and collars are designed to secure around the greater external diameter. Any item that requires a locking band to create a connection comes with one included.
The black terminal 125mm twin wall flue pipes are manufactured from high-quality stainless steel which is then powder coated to a matte black finish to suit our black finish range. Our range of black terminal includes rain cap, cone top cowl, rotating cowl which boasts excellent insulating properties. It also comes with secure locking bands, fully welded twin walls, and an impressive twelve-year warranty for long-term peace of mind.
If you’re looking for black terminal 125mm twinwall flue pipes, then take a look at our range of pipes, adaptors, rain caps, and base supports below.