Magic Seal 3 Quart Model NP 6850 Magic Seal Sealing Ring opn w917 $10.49 Magic Seal Pressure Regulator w977 $10.95 9915 Over Pressure Plug $3.99 Presto 9911 Automatic Air Vent $3.99 1058 Vent Pipe $8.49 Presto 85341 6 3/4 in. dia. Canning Rack $7.49 Presto 49831 Pressure Cooker Instruction/Recipe Book $8.49