The new improved MAXbrite Aladdin burner is 15% brighter than the common 23 series. It can be used as a replacement for all Aladdin lamps with a glass base, and any metal Aladdin lamp Models A, B, C, 21, 21c, 23, 23a (lamps with a standard tank containing no center air tube). For best results, use with MAXbrite Heelless Chimney (#100-004-908) or MAXbrite Heelless High Output Chimney (#100-006-743). Requires R150 Mantle (sold separately). Each burner comes with a wick and a near universal wick cleaner. Operating and Safety Instructions included. 3-1/2" H, 2" OD threads. Nickel. Components manufactured in China, final assembly in the USA. This burner fits lamps made by Aladdin. For best performance, always use genuine Aladdin parts.