For use with the Insulated Tee as an interior or exterior support where the chimney has a lateral connection. Also useful where the pipe connection passes through a combustible interior or exterior wall. Braces may only be fastened to the wall below the plate for chimneys which penetrate through the wall. C = 17". No. 6T-WSK: Compatibility: SSII, A Size: 13", B 10-1/2. ", C Size: 17 ", Material: Galvanized Steel No. 8T-WSK: Compatibility: SSII, A Size: 15", B Size: 12-1/2", C Size: 17", Material: Galvanized Steel ---- 1. As this product is brand new, there may be some damage to the package, but please rest assured that this does not affect the product itself. 2. Product **and other products made in Japan are not applicable. 3. Packaging and instructions are in English.