# PURIFIER (PURIFIER)

> Fil-Trek Cartridge Filters. Canonical page: https://www.fil-trek.com/products/cartridge-filters/purifier

Category: Cartridge Filters
Series: PURIFIER
Model format: `[SIZE]-[MEDIA]-[MICRON]-[LENGTH]-[CORE]-[END CAP]-[SEAL]`
Example: `P250-PO-5-30-PO-E2-BN`

## Overview
Purifier Series cartridge filters deliver consistent, high-efficiency particulate removal across diverse process fluids.

## How It Works
Process fluid passes through a high-surface-area media pack that progressively captures contaminants while allowing clean fluid to exit the core

## Applications
- Absolute clarification of process water, final filter ahead of membranes or critical use points
- Acid/base polishing in chemical processing (material-dependent selection)
- Amine and glycol loop protection (amine treating, MEG/TEG recon)
- Hydrocarbon and fuel particulate control (diesel, jet, solvents—verify compatibility)
- Brine filtration in salt/chemical operations
- Organic solvent filtration in coatings/chemical plants

## Physical Specifications
- **flow direction:** Outside-to-inside
- **backwash-able:** No
- **outside diameter options:** 2.5", 3.0", 3.75", 4.25", 5.0"
- **inner diameter options:** 1.1", 1.5", 2.2", 2.5"
- **nominal length options:** 10", 20", 30", 40", 36.5"
- **end cap options:** DOE, SOE W/ 222, SOE W/ Spring, 222/Fin Single Open End, SOE W/ Internal O-Ring, SOE W/ 226, SOE W/ External O-Ring
- **cores materials:** Polypropylene, Tinned steel, Stainless steel
- **caps materials:** Polypropylene, Polyester, Tinned steel, Stainless steel
- **outer wrap materials:** Polypropylene, Tinned steel, Stainless steel
- **gasket material options:** Buna-N, EPDM, Viton
- **special notes:** Additional sizes/lengths available, please contact Fil-Trek

## Media Specifications
- **media primary options:** Cellulose, Polypropylene, Microglass, Polyester, Nylon
- **micron ratings:** 0.5, 2, 5, 10, 20, 40, 70, 100
- **efficiency percent:** 99.98%
- **media rating:** Absolute
- **beta ratio:** 5000
- **changeout dp:** 35 PSID
- **burst pressure:** 50 PSID
- **max temperature:** 185°F
- **approvals certifications:** None

## Housing Compatibility
- Fil-Trek PF Series

## Ordering
- Model format: `[SIZE]-[MEDIA]-[MICRON]-[LENGTH]-[CORE]-[END CAP]-[SEAL]`
- Example: `P250-PO-5-30-PO-E2-BN`

### Media codes
- **PO:** Polypropylene
- **PE:** Polyester
- **NY:** Nylon
- **MG:** Microglass
- **CE:** Cellulose

### Length codes
- **Depending on Size:** See Table

### Seal codes
- **BN:** Buna-N
- **EP:** EPDM
- **VI:** Viton

### Core codes
- **PO:** Polypropylene
- **PE:** Polyester
- **TN:** Tinned steel
- **SS:** Stainless steel

### Cap codes
- **E2:** DOE
- **E4:** SOE W/ 222
- **E8:** SOE W/ Spring
- **E5:** 222/Fin Single Open End
- **E14:** SOE W/ Internal O-Ring
- **E6:** SOE W/ 226
- **E20:** SOE W/ External O-Ring

### Size codes
- **P250:** OD 2.5", ID 1.1", length 10, 20, 30, 40"
- **P300:** OD 3", ID 1.5", length 36.5"
- **P380:** OD 3.75", ID 2.2", length 40"
- **P430:** OD 4.25", ID 1.5", length 40"
- **P500:** OD 5", ID 2.5", length 40"

### Micron ratings
- 0.5, 2, 5, 10, 20, 40, 70, 100

## 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/cartridge-filters/purifier
- Markdown: https://www.fil-trek.com/products/cartridge-filters/purifier.md