CO2 or Compressed Air Agitator – 100% Stainless Steel Attachment Wacky Willy’s new stainless steel agitator blaster runs on compressed air or CO2 blowing freezing cold air into your bubble hash!  Ideal for cold water ice extraction and CO2 extraction. Agitates well with 5 - 30 gallon buckets.  This attachment has no plastic or moving parts, and no electricity is required.