Categories of Bowl Quality and Hygrocool Systems

Natural A (Bowl A)

• 90% - 100% pure clear grain
• Production 3% - 5%

Natural B (Bowl B)

• Defects must not be larger than a pin head
• Production 8% - 10%

Aristocrat C (Bowl C)

• Defects must not be larger than a nail head
• Production 10% - 25%

Export X (Bowl D)

• The rest of the pipe bowls belongs to this category and there are sandblast or dark color