Williams Furnace 7717 Gas Conversion Kit - Propane Gas to Natural Gas for 3508231 d13 218810 18-Inch 20S-SC 220810 20-Inch

218810 18-Inch 20S-SC 220810 20-Inch 22S-SC 222810 22-Inch 24S-SC 224810 24-Inch

Includes 2ft Masonry Chimney and MFP39-SHBL Brick Liner

under a window or as a room divider

LIGHT CONTROL

U/Hour rating maximum 445

Williams Furnace 7717 Gas Conversion Kit - Propane Gas to Natural Gas for 3508231 d13 218810 18-Inch 20S-SC 220810 20-InchOverview Williams Comfort Products Made In America Since 1916! For over 100 years, Williams has designed and manufactured quality heating, ventilation, and air conditioning products for both the home and business. It all started in 1916, when Jesse Williams began building gas steam radiators in Los Angeles under the banner Williams Radiator Company. Williams commitment to quality was clear from the start, and the companys product line expanded over