Compatible Replacement for Part # S.FAPLATE3 and FAPLATE3 Compatible with the Blaze King Ashford 30, Blaze King Chinook 20, Blaze King Chinook 20.1, Blaze King Chinook 20.2 Fits 3'' Dia Pipe USA-Based Seller With 7 Days-a-Week Customer Support The outside air kit feeds uninterrupted combustion air into your appliance from outside the home. This helps to maintain a proper air to fuel balance. This kit includes the Outside Air Cap, 3" Diameter x 10' Long Flex Pipe, and two Hose Clamps. Compatible with the Blaze King Ashford 30, Blaze King Chinook 20, Blaze King Chinook 20.1, Blaze King Chinook 20.2