Sous Vide Rack Expandable and Ball Cover Kit Bundle Food Grade Insulating Floating Ball Cover To Reduce Evap Sous Vide Balls covers top of any open tank, container, or pot like a lid. Covers containers up to 5 Gal (20 Quarts) in size. Adjustable Stainless Steel Sous Vide Rack 7.25 long X 6.25 wide X 7 tall - with higher ends, adjustable dividers and heavier gauge rust resistant Stainless Steel. Allows for water circulation during Sous Vide Cooks. Reduces splashing hazard. Readuces heat and water loss Steam trapping balls allow bath to reach desired cooking temp quicker 100% BPA free water balls with mesh bag for storage and drying