The Thunder Group SLDB020C is a durable lid designed specifically for the SLDB020 20-quart double boiler. Crafted from high-quality 18/8 stainless steel, this cover ensures excellent heat retention and durability. It meets NSF standards, making it suitable for commercial kitchen use. A minimum order of six units is required, making it an ideal choice for restaurants and catering services looking to maintain efficiency and quality in their cooking processes.