Filtermart™ Depth Filters

A depth filter uses a thick, multi-layered matrix that captures particles throughout its depth, giving every depth filter cartridge a higher dirt-holding capacity and longer service life than a comparable surface-only design.

Whether you're sourcing a single replacement element or a complete depth filtration equipment package for a new production line, our catalogue covers wound, meltblown, resin-bonded, and pleated media sized to match OEM specifications. Browse our industrial filters range, or related media such as bag filters, string wound filters, and coalescer filters for a different filtration stage.

Depth Filter Cartridges & Elements

FilterMart carries an extensive range of depth filter cartridges so you can match the exact element to your housing, flow rate, and contamination profile:

• Depth filter cartridges: Wound, meltblown, and resin-bound constructions in graded pore sizes for progressive filtration.
• Depth filter elements and modules: Drop-in replacements engineered to OEM dimensions for minimal downtime. When replacing depth filter elements, verify cartridge length, diameter, end-cap configuration, micron rating, and media type.
• Sheet depth filter modules: Layered sheet media used in beverage, wine, and pharmaceutical polishing applications.
• Single-use depth filters: Disposable capsules and modules for biopharma and other contamination-sensitive processes where cleaning validation isn't practical.

Depth Filter Housings and Filtration Systems

From single-cartridge depth filter housing vessels to multi-round assemblies, FilterMart'shousings and vessels range is sized for every depth filter product line we carry, whether you're replacing one housing or specifying a full depth filtration system.

Reliable Depth Filtration Solutions for Industrial Applications

The industrial application of depth filtration spans nearly every sector that processes liquids with variable particle loads:

• Chemical processing: Clarification of aggressive solvents and reactive fluid streams.
• Oil, fuel, and lubrication systems: Protecting downstream pumps and valves with high-flow depth filters.
• Beverage and food processing: Clarifying juices, wine, and syrups without stripping flavor.
• Cannabis extraction: Cannabis depth filters and cartridges for winterization, decarboxylation cleanup, and final polish.
• Water and wastewater treatment: Ion-free depth filter and deep bed depth filtration for high-purity process water.
• Pharmaceutical and biotech: Fluid depth filter modules and single-use formats for sterile workflows.

See how these products are used across other sectors on our markets served page.

Depth Filtration Equipment and Skids

For higher-flow and multi-stage processes, FilterMart offers pre-engineered depth filter skids that combine multiple housings, valving, and instrumentation into a single, ready-to-install package available in standard or custom configurations to match your flow rate and footprint.

Why Buy Depth Filters From FilterMart

FilterMart manufactures and stocks depth filtration technologies built to meet and in many cases exceed original equipment specifications, so you're never locked into a single OEM part number.

• Extended-life depth filter media that reduces changeout frequency and total cost of ownership.
• Cross-reference support across more than a million part numbers, matching your existing depth filter cartridge without guesswork.
• Deep inventory of depth filtration systems, modules, and depth filter skids ready to ship.
• Volume pricing for facilities running multiple depth filtration equipment lines.

Many depth filter elements are sourced from and cross-referenced against trusted names such as Pall filters, Hydac filters, and Parker filters.

Choose the Right Depth Filter for Your Business

Selecting the correct depth type filter comes down to matching media to your process conditions:

• Particle load: Heavier or more variable dirt loads favor a graded-density depth filtration medium over a single-rated surface filter.
• Flow rate: High flow depth filters use larger surface area and coarser outer layers to maintain throughput without excessive pressure drop.
• Fluid chemistry: Resin-bonded and meltblown depth filter media suit different solvents, temperatures, and viscosities.
• Micron rating and filter depth: Deeper media beds generally support finer final micron ratings while retaining more dirt-holding capacity.
• Housing compatibility: Confirm that your filter housing for a depth filter module accepts the cartridge length, diameter, and end-cap configuration you're ordering.

Not sure which configuration fits your application? Contact our team, and we'll help you cross-reference your current depth filtration system or spec a new one from the ground up.

Frequently Asked Questions

What are depth filters made of?

Depth filters are typically made from wound cotton, polypropylene, or glass fiber; meltblown polypropylene microfibers; or resin-bonded cellulose and cotton sheets, depending on chemical compatibility, temperature resistance, and required micron rating.

How does depth filtration work?

Depth filtration works by passing fluid through a thick bed of layered media instead of a single filtering plane. Contaminants are captured throughout the media: larger particles near the entry surface, progressively finer particles deeper inside, spreading the dirt load and extending the element's usable life.

What is the difference between a depth filter and a surface filter?

A surface filter captures particles on a single outer layer and can blind off quickly. A depth filter distributes the same load through a multi-layered matrix, giving it a higher dirt-holding capacity and longer service interval, particularly with gels, high-viscosity fluids, or heavily contaminated streams.

Can depth filters be used for high-flow applications?

Yes. High-flow depth filters are built with larger element diameters, pleated or wound configurations with more surface area, and coarser outer layers to sustain higher throughput while still achieving progressive, graded-density filtration.

Are single-use depth filters available for pharmaceutical or biotech processes?

Yes. FilterMart stocks single-use depth filters and disposable depth filter modules for sterile and semi-sterile workflows where cleaning validation between batches isn't practical, including formats suited to cell harvest and clarification.

How do I find a replacement depth filter cartridge for my existing housing?

Use our cross-reference database, or contact FilterMart with your current part number. With cross-references covering more than a million products, our team can typically match or upgrade your existing depth filter element the same day.