The Uniflame 4 Ft. Extension Kit For Premium Log Rack expands your firewood storage to a full eight feet. This accessory is made from steel in an all-black finish and is designed for the Uniflame W-1745 log rack specifically. About Blue Rhino/Uniflame/Endless Summer: Blue Rhino Global Sourcing Inc. is America s #1 propane tank exchange brand but it doesn t stop there. Blue Rhino is a leading designer and marketer of outdoor appliances and fireplace furnishings. These products include barbecue grills outdoor heaters outdoor fireplaces mosquito traps and fireplace furnishings. You ll find a Blue Rhino product in the middle of half a billion barbecue events nationwide every year. They come under various brand names including UniFlame® Endless Summer® and SkeeterVac®.