Best 400 Micron Mesh Screens for Liquid and Material Filtering
The best 400-micron mesh screen depends on whether you need a reusable bag, a cut-to-size sheet, or a corrosion-resistant metal screen. For a ready-made filter bag, consider Honritone; for a stainless steel screen, consider BeyondSupply. Check the units carefully: a 400-mesh screen is much finer than a 400-micron screen. The uxcell and FOCMKEAS sheets are listed as 400 mesh with 35-micron openings, not 400 microns.
| Product | Format | Listed filtration size | Best suited for |
|---|---|---|---|
| Honritone Nylon Filter Bag | Reusable bag | 400 micron | Bag-style liquid filtering |
| BeyondSupply Stainless Steel Screen | Woven sheet | 400 micron / 40 mesh in title | Metal-screen applications |
| uxcell Nylon Mesh Sheet | Cut-to-size sheet | 400 mesh / 35 μm | Fine paint or brewing filtration |
| FOCMKEAS Nylon Mesh Sheet | Cut-to-size sheet | 400 mesh / 35 μm | Fine filtration in a larger sheet |
| ZSMSTW Nylon Mesh | Cut-to-size sheet | 200 mesh / 75 μm | Finer alternative to coarse screening |
Honritone 400-Micron Nylon Filter Bag
This ready-made filter sock is the most direct match for someone searching for a 400-micron filter bag. It measures 7 inches across the ring and 16 inches long, and its nylon mesh is stitched into a reusable bag shape.
Best for: Buyers who need a bag-style filter rather than a flat screen. The product is described as washable and reusable, with heavy stitching and a sturdy mesh construction.
Limitation: Its fixed ring diameter and length may not fit every filter housing or setup. Confirm those dimensions before choosing it.
BeyondSupply 316L Stainless Steel Screen
This 24-by-48-inch woven-wire sheet is made from T316L stainless steel. Its title identifies it as 40 mesh and 400 micron, making it a relevant option when a metal screen is preferred over nylon.
Best for: Buyers looking for a cuttable metal screen and prioritizing the listed corrosion, wear, acid, and high-temperature resistance. The product is described as cut from new rolls.
Limitation: The listing’s title supplies the 400-micron figure, but buyers should verify the opening specification for their process before use. Metal mesh is not a flexible filter bag.
uxcell 400-Mesh Nylon Filter Sheet
This 39-by-39-inch nylon sheet is listed as 400 mesh with a 35-micron rating. It is intended for filtering paint, home brewing, and chemical-industry applications, and can help remove dust and undissolved particles before paint is sprayed or brushed.
Best for: Buyers who need fine filtration and can cut a flat sheet to suit their setup. Its fine mesh is described as helping prevent sprayer clogging.
Limitation: This is not a 400-micron screen. At 35 microns, it filters much finer particles than a 400-micron opening and may not suit a process that specifically requires 400-micron passage.
FOCMKEAS 400-Mesh Nylon Filter Cloth
FOCMKEAS supplies a 39-by-39-inch nylon sheet with a listed 35-micron pore size and 400-mesh rating. The fabric can be cut into different shapes and sizes. The listed uses include filtering dust, sediment, and impurities from liquids or materials.
Best for: Buyers who want a sizable, cut-to-fit fine-mesh sheet for paint, beverages, or industrial liquid filtering. The listing also describes the material as wear- and heat-resistant, corrosion-resistant, and oil-resistant.
Limitation: Despite “400 Mesh” in the name, its 35-micron specification is not equivalent to 400 microns. Choose it for finer filtration, not when a 400-micron opening is required.
ZSMSTW 200-Mesh Nylon Filter Mesh
This 39.3-by-78.7-inch sheet is identified as 200 mesh and 75 microns. Its listing describes food-grade nylon and use in food processing, agriculture, machinery, chemical applications, and household filtering. The material is described as washable, recyclable, and resistant to oil, heat, and corrosion.
Best for: Buyers who want a larger sheet and a finer alternative to coarse 400-micron screening. It is not the closest match by opening size, but it offers a useful middle ground between coarse filtration and the 35-micron 400-mesh sheets.
Limitation: The supplied product name specifies 200 mesh / 75 microns, not 400 microns. Do not select it if the required opening is exactly 400 microns.
Buying Guide: How to Choose a 400-Micron Mesh Screen
Does 400 mesh mean 400 microns?
No. “Mesh” counts openings per linear inch, while microns describe opening size. A higher mesh count generally means smaller openings, but the exact conversion depends on wire or thread thickness and the product specification. In these listings, 400 mesh is paired with approximately 35 to 38 microns, far finer than a 400-micron opening. Compare the stated micron rating, not just the mesh number.
Should you choose a sheet, bag, or metal screen?
- Choose a bag when a sock-shaped filter fits your equipment and a ready-made reusable format is useful.
- Choose a nylon sheet when you need material that can be cut to shape or need fine filtration.
- Choose stainless steel when a rigid woven-wire material is better suited to your application’s temperature or chemical exposure requirements.
What should you verify before buying?
Check the opening size, overall dimensions, material, and intended filtering setup. For sheets, confirm there is enough area to cut the required shape. For bags, compare the ring diameter and length with the intended holder. For food or chemical use, verify that the listed material is appropriate for the specific substance and process; a general product description does not confirm suitability for every application.
Frequently Asked Questions
What does a 400-micron screen filter?
A 400-micron screen has openings specified at 400 microns. It retains particles that are too large to pass through those openings, though actual performance also depends on the material and filtering conditions.
Is 400 mesh finer than 400 microns?
In the products listed here, yes. The 400-mesh nylon sheets are specified at 35 microns, which is a much smaller opening than 400 microns.
Which listed option is explicitly a 400-micron filter bag?
The Honritone filter sock is listed as a 400-micron nylon bag and measures 7 inches across the ring by 16 inches long.
Can nylon filter mesh be reused?
Some listings describe their nylon mesh as washable or reusable. Follow the product’s care instructions and check whether the material is suitable for the liquid or process being filtered.
Is a 400-mesh sheet a substitute for a 400-micron screen?
Not when the required opening is 400 microns. A 400-mesh sheet listed at 35 microns is substantially finer, so use the micron specification to match the filtration requirement.