09936 Pressure Cooker Sealing Ring/Overpressure Plug Pack (4, 6 & 8 Quart) Presto Pressure Cooker Sealing Ring. Presto Part Numbers 09936 9936 09904 9904 50295. 9936Regular price: $14.99Sale price: $14.55 For Models 0136102 0136001 0135004 0136203 0136304 0136403 0135001 0134104 0126407 0126002 01/PS6 01/PS4 0131001 0134103 0134001 0131004 Model numbers beginning: 01301 and 01350.