Size 4 Filter Bag – Nylon Monofilament (NMO-P4S)

The Size 4 nylon monofilament filter bag (NMO-P4S) — also called a Size 4 filter sock — delivers high-precision surface filtration with consistent pore size.
Choose from a 304 stainless steel ring or polypropylene flange (POL). Ideal for applications requiring bag integrity, precise micron control, and reusability.

Key Features

• Size 4 (4.1" diameter × 14" length)

• Reusable, precision-woven nylon mesh

• Consistent micron rating from 100–1200 µm

• Excellent dimensional stability

• Optional SS ring or POL flange

• Sewn construction for reliable sealing

• Surface filtration – easy to clean

• Made in the USA 🇺🇸

Application Suitability

✅ Bulk Solids Filtration
✅ Paint & Resin Screening
✅ Cooling Water Filtration
✅ Food & Beverage (non-critical)
✅ Recyclable Fluids

Typical Applications

• High-viscosity liquid filtration

• Large particulate removal

• Reusable fluid systems

• Cooling loop sidestreams

• Large-batch straining operations