Genuine Aladdin Replacement Chimney. Model #R910, high quality premium grade Heel-Less chimney. For older Models 3-11 and all Model 23a lamps made from 2000 to 2015. Height: 12-1/2" Base: 2-5/8" SpecificationsIMPORTEDGlass Size: #R910Dimensions: 2.6 in × 2.6 in × 12.5 inSKU: R910 List price: $25.00$23.97 Quantity *