These are designed for testing a flue or chimney for any inconsistances. They produce a dense smoke to expose any potential issues. They are sold in various colours and can be either matches or cartridges.
Pack of 10
Smoke Colour: Grey
Burn time Grading: 3
Technical specification
Waist Sizeab65cd94gzTypeSmoke PelletManufacturer Model No333003Brand NameArctic Hayes