NOS PART NO 50076 (33015) The Presto 33015 Pressure Cooker Sealing Ring and Air Vent is a set of essential components for your stove top pressure cooker. Made of durable rubber, this gasket is designed to provide a secure seal to ensure even cooking pressure. Compatible with models B301, B401, 703, 704, and 733, this black sealing ring comes in a convenient unit quantity of 2. Perfect for kitchen use, this Presto brand gasket is a reliable and essential accessory for your pressure cooking needs. 31126 DADS