# Multi-layer High Performance (PMF)

> Fil-Trek Bag Filters. Canonical page: https://www.fil-trek.com/products/bag-filters/pmf

Category: Bag Filters
Series: PMF
Model format: `PMF-[MEDIA]-[MICRON]-[SIZE]-[FLANGE]`
Example: `PMF-PO-5-2-PS`

## Overview
Universal multilayer depth bag for high contaminant loading with stable, low dP; hydrophobic felts aid particulate capture and trace oil reduction, and standard collars provide a positive seal in common housings

## How It Works
Fluid flows inside-to-outside through a basket-supported bag. Multi-layer depth media provides graded capture and aids trace-oil reduction, while a positive-seal collar minimizes bypass and retains solids inside the bag for clean change-out

## Applications
- Water and desalination pretreatment; general process water
- Oil and gas, petroleum, and lubricants service, including tramp-oil cleanup
- Chemicals, coatings, inks, and coolants with high solids loading
- Pulp and paper, power, electronics, marine utility liquids

## Physical Specifications
- **flow direction:** Inside-to-outside
- **outside diameter options:** 7.06"
- **nominal length options:** 16.5", 32"
- **size options:** 1, 2

## Media Specifications
- **media primary options:** Polypropylene, Polyester
- **micron ratings:** 1, 2, 5, 10, 25, 50
- **efficiency percent:** 95%
- **media rating:** Nominal
- **beta ratio:** 20
- **changeout dp:** 15 PSID
- **burst pressure:** 35 PSID
- **max temperature:** 200°F (Polypropylene), 275°F (Polyester)
- **approvals certifications:** FDA Listed

## Housing Compatibility
- Fil-Trek BMB Series
- Fil-Trek LP Series
- Fil-Trek SL Series
- Fil-Trek PL Series
- Fil-Trek TL Series

## Competitor Cross-Reference
- AJR POMF/PEMF

## Ordering
- Model format: `PMF-[MEDIA]-[MICRON]-[SIZE]-[FLANGE]`
- Examples:
  - `PMF-PO-5-2-PS`
  - `PMF-PE-10-1-TI`

### Media codes
- **PO:** Polypropylene
- **PE:** Polyester

### Flange codes
- **PS:** PLASTIC SURE SEAL (STD)
- **CS:** GALVANIZED STEEL RING
- **SS:** STAINLESS STEEL RING
- **TI:** TITANIUM RING

### Size codes
- **1:** OD 7.06", length 16.5"
- **2:** OD 7.06", length 32"

### Micron ratings
- 1, 2, 5, 10, 25, 50

## Contact
- **sales@fil-trek.com** — all filtration product inquiries, projects, filter housings, and filtration systems
- **filters@fil-trek.com** — replacement filter media, filter elements, filter bags, hardware, and spare parts

## Links
- HTML: https://www.fil-trek.com/products/bag-filters/pmf
- Markdown: https://www.fil-trek.com/products/bag-filters/pmf.md