Grill Thermal Insulated Blanket for Weber Genesis II 300 and LX 300 Gas Grills, Grill Accessories Insulation Blanket for Weber Genesis 300 Series For Weber Genesis II 300 and LX 300 Grill is up for auction in Patio, Lawn & Garden. The current bid is $2.00, 93% below the $29.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.