You'll find the best prices on Presto pressure cooker parts in Crock Pots & Slow Cookers when you shop online at bizrate. Do all your comparison shopping for Presto Crock Pots & Slow Cookers in one place. Compare models and see which online Appliance stores have the best merchant ratings. Make an informed decision on Presto pressure cooker parts Crock Pots & Slow Cookers before you buy. bizrate will help you with all of your holiday gift shopping needs. Buy 9913/9978 pressure cooker regulator weight. or Presto 9903 pressure cooker gasket seal kit..