VEVOR Fire Pit Wind Guard, 30.5 x 11.5 x 6 Inch Glass Wind Guard, Rectangular Glass Shield, 0.3" Thick Clear Tempered Glass Flame Guard, Steady Feet Tree Pit Guard for Propane, Gas, Outdoor

44 x 14 x 7.5 is the closest size: https://www.vevor.com/fire-pit-wind-guard-c_10224/vevor-glass-wind-guard-for-rectangular-fire-pit-table-44-x-14-x-7-5-inch-0-31-inch-thick-and-sturdy-tempered-glass-panel-with-hard-aluminum-corner-bracket-rubber-feet-easy-to-assemble-p_010492827125.

No, we don't have glass firepit screen 11.5" X 47.5"X6”.