Filter Paper

Great Lakes Filters offers the widest selection of regular and high wet strength grades of Ahlstrom filter paper with NSF approval. Using these filter papers, we can create solutions to optimize clarity, flow rate and overall performance.

We offer lint-free and FDA grades of filter paper as well as non-wovens and standard grades for applications where product clarity is a major concern – including pharmaceutical, beverage, cooking oil, wine, whiskey, syrups and industrial oils. We also offer filter presses and gravity bed type units from suppliers like Serfilco, Oberlin and ACE.

Our converting capabilities allow us to offer filter paper custom die-cuts and expedite deliveries of rolls, sheets, circles and any other shape or size.



Great Lakes Filters and our Filpaco product line have a long track record in supplying filter paper and cloth to industry for a widest variety of applications. From dewatering of mineral mining slurries to blood plasma purification, Filpaco has the optimal grade for your application. Custom sizes and configurations available upon request.

Filpaco Paper Grade Chart

Grade   Thickness (Inches) Color & Texture Flow Rate (GPM) Net Strength  Micron*
030   .010 White – Creped 235 10 24
035   .020 White – Creped 360 12 35
050   .040 White – Creped 435 12 31
055   .032 White – Creped 435 10 30
060   .039 Tan – Creped 100 10 8
080   .050 White – Smooth 60 100 1.5
100   .025 White – Smooth 200 75 20
115   .027 White – Smooth 100 85 7
130   .015 White – Creped 670 65 48
135   .027 Tan – Creped 200 95 14
140   .028 White – Smooth 1300 150 55
150   .007 White – Smooth 12 90 2
180   .017 White – Creped 360 50 40
185   .010 White – Creped 235 100 27
190   .026 White – Creped 435 75 30
200   .024 White – Creped 600 50 40
215   .006 White – Creped 130 90 43
258   .030 White – Creped 100 100 20

Values above represent average readings and should not be used for precise calculations.

Explanation of Column Headings
(1) Weight in pounds per ream, 500 sheets: 20 in. x 20 in.
(2) Milliliters of water per minute passed through 2″ diameter sample with constant 2″ head.
(3) Head in inches water column required to burst 1″ diameter sample
(4) Largest size, in microns, spherical glass beads that paper will pass under standard laboratory conditions.

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