supjoyes grill cover for masterbuilt 560/800 gravity series digital charcoal grill and smoker, heavy duty waterproof bbq cover for mb20080220 gravity series is up for auction in Patio, Lawn & Garden. The current bid is $1.50, 95% below the $29.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.