Mason-Lite KW 10" Fan Adaptor for RSD250 Chimney Fan w41.25 it is very important that

it is very important that you clearly identify what your needs are

This high elevation kit is specifically for use with your Williams Natural Gas 20

maintain the minimum 1″ clearance (air space) from vent pipe to combustibles

Choice of 11 Colors

Flat Tempered Glass Panes (G2T)

Mason-Lite KW 10" Fan Adaptor for RSD250 Chimney Fan w41.25 it is very important thatWhat's Included Fan Adaptor Features For use with KW RSD250 Chimney Fan 304 Stainless Steel construction Specifications Item Number RFA. 210 Size 10" Product Type Fan Adaptor Top Diameter 12 3 4" Bottom Diameter 9 7 8" Style 4" Warranty Masonry Fireplaces Industries, Inc. (MFI) warrants all Mason Lite Fireplaces to be free from defects in materials that adversely affect fireplace performance for the lifetime of the product from the date of purchase,