How to Choose a Filter Bag

Physical structures fall into three categories: Mesh, Needle-felt, and Melt-blown. Manufacturing techniques determine the materials and cost-efficiency.

• Needle-felt: Generally the most common and least expensive.
• Mesh: Slightly more expensive; best for large particle retention (> 100 microns).
• Melt-blown: Higher efficiency and ideal for depth filtration.

The Snap-Ring®

A metal or plastic ring sewn into the opening. While cost-effective, the sewn construction makes these best for 50+ micron applications where absolute retention isn't required.

SENTINEL® Crush-Seal

A pressure-activated plastic ring that "snaps" into the basket. Downward pressure from the housing cover creates an outward force, ensuring a bypass-free seal for critical applications.

DURAGAF™: Designed to last 3x longer than standard felt bags by using thicker material. Reducing the frequency of changes lowers labor, disposal costs, and process fluid loss.

ACCUGAF™ and PROGAF™: These multi-layered melt-blown designs provide absolute rated efficiencies that rival filter cartridges while supporting much higher flow rates.

Accessories like Displacement Balloons and Magnetic Inserts can significantly improve your ROI. Balloons reduce product loss during changes, making bags lighter and safer to remove, while 9300 Gauss magnets capture fine ferrous particles that standard media might miss.