The Shieldmaster Tee Cap with Drain is designed to fit both the 135° and 90° tee pieces, providing a convenient solution for easy sweeping and efficient drainage of your external system.
Shieldmaster requires no additional silicone or sealants to create a secure seal. Its innovative push-fit locking system ensures quick, simple connections and effortless disconnection when needed.
Important Information
All twin wall flue parts are measured by their internal diameter. Due to the insulated construction, the external diameter will be approximately 2 inches larger than the stated size.
Technical Guidance
For help with installation requirements and compliance, please see our Technical Information section, which includes easy-to-understand guides covering Building Regulations for stove and flue installations.
For more information about twin wall flue installations, see our guide.

Shieldmaster twin wall flue pipe is precision made to achieve a smaller distance to combustible materials than many other pipes on the market. At just 60mm minimum clearance to combustibles and a 25 year warranty this brand of twin wall pipe really does the job well and is built to last. With its unique push fit system it easily locks with an included band without the need for any sealant or adhesives at the joins.
Shieldmaster flue products come with a 25-year warranty covering manufacturing defects, provided the system is installed and used in accordance with the supplied installation instructions. To maintain warranty validity, the flue must be professionally swept at least once a year by an approved chimney sweep, with a signed service record kept. When burning solid fuels, only those approved by HETAS or the Solid Fuel Association are permitted. Use of unapproved fuels or any indication of a chimney fire will void the warranty. For coloured flue pipes with a powder-coated finish, the surface coating is covered by a separate 2-year warranty.
Shieldmaster Twin Wall Flue Systems Brochure
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