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Change quantity ordered or remove quantity ordered. Click on quantity and move to quantity desired or to "Remove". This will change order quantity or "Remove" quantity to "0". If this is the only product ordered, your shopping cart will show "no number in basket".
Part Number: 20PRO10P1. Micron is 20. PRO is for FDA polypropylene yarn. 10 is Length (10"), P1 is Poly core.Part Number: 20PRO10-7P1. The -7 means this is a 4.5" Diameter filter. 
First two numbers are Micron: 10 20 50 These microns are the most popular for water filtration in the poultry industry. PRO is FDA Polypropylene Yarn, all our filters use FDA Polypropylene yarnSecond set of numbers is the filter length. On this web site we only offer 10" and 20" filter lengthsThe -7 after the length number is the designation for large diameter filters (4.5") sometimes referred to a "Big Blue").The P1 indicates this is a poly core. 10P1 is a 10" long poly core and 20P1 is a 20" long poly core 

Understanding Our Part Number Structure

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