- Category: Bag Filter
Size 3 Filter Bag – Polyester Multifilament (PEM-P3S)

Per Unit Pricing
- Buy 25+: $4.90 each
- Buy 50+: $4.17 each (15% off)
- Buy 100+: $3.43 each (30% off)
Product description
This Size 3 polyester multifilament mesh filter bag (PEM-P3S), also known as a Size 3 filter sock, is built for limited reuse and excellent solids capture in low-pressure applications. With micron ratings from 75 to 800 and options for either a stainless steel (SS304) ring or polypropylene flange (POL), this bag provides dependable filtration in a compact footprint. Soft and flexible, it’s a go-to for general-purpose use.
⭐ Key Features:
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Micron ratings from 75 to 800
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Size 3: 4" diameter × 8" height
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Flexible and soft mesh design
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Limited reusability with easy cleaning
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Selectable SS304 ring or POL flange
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Made in the USA 🇺🇸
Application Suitability:
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Great for general-purpose filtration
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Ideal for low-pressure or gravity-fed systems
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Suitable for batch-style processing
Typical Applications:
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Cooling tower water filtration
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Paints and inks
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Food-grade solids removal
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Cleaning solution filtration
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Pre-filtration stages in multi-step setups

Size 3 Filter Bag – Polyester Multifilament (PEM-P3S)