# FG (FG)

> Fil-Trek Gas Filters. Canonical page: https://www.fil-trek.com/products/gas-filters/fg

Category: Gas Filters
Series: FG
Model format: `FG-[SIZE CODE]-[MICRON]-[SEAL]-[CORE]-[CAPS]-[OPTIONS]`
Example: `FG-336-0.3-V-C-C-SS`

## Overview
Phenolic‑bonded fiberglass depth elements coalesce liquids and capture fine solids with low initial dP, protecting compressors and downstream equipment. A cost‑effective, industry‑standard solution for gas separation across diverse applications.

## How It Works
Gas flows outside-to-inside through a cotton-covered fiberglass depth matrix. Particulate loads on the exterior while submicron aerosols impinge within the phenolic-impregnated fibers, coalescing into larger droplets that drain by gravity.

## Applications
- Natural gas transmission, gathering, and metering: fine particulate and aerosol control
- Plant air and process gases in oil & gas, petrochemical, and industrial service
- Prefiltration for dehydration (glycol), desulfurization, CO2 removal, and compressor inlet protection
- Typical contaminants: rust/scale, dust, iron sulfide fines, lube mist, condensable aerosols

## Physical Specifications
- **flow direction:** Outside-to-inside
- **outside diameter options:** 3.3", 4.5", 5.5"
- **inner diameter options:** 2.1", 3.1", 4.25"
- **nominal length options:** 12", 24", 36", 72"
- **end cap options:** Open metal cap flat gasket
- **top cap options:** Open metal cap flat gasket, Metal cap with 16mm hole
- **inner core materials:** Metal Core, Stainless Core
- **outer core materials:** Metal Core, Stainless Core
- **outer wrap materials:** Cotton
- **size options:** 12, 24, 36, 72, 312, 324, 336, 372, 536, 572
- **gasket material options:** Buna-N, EPDM, Viton

## Media Specifications
- **media primary options:** Fiberglass
- **micron ratings:** 0.3, 0.5, 1, 5, 10, 25, 50
- **efficiency percent:** 98
- **media rating:** N/A
- **beta ratio:** 50
- **changeout dp:** 15 PSID
- **burst pressure:** 120 PSID (3.3 OD), 75 PSID (4.5 OD), 35 PSID (5.5 OD), 145 PSID (HP Core)
- **max temperature:** Based on material
- **approvals certifications:** None

## Housing Compatibility
- Fil-Trek 75H Series
- Parker Series 75/85

## Competitor Cross-Reference
- Parker/Peco FibrSep FG
- Jonell JFG/JMG
- AJR FJC
- Filter-Fab MFG/MFS
- Royal Filter RF
- Shawndra Sparksfilters SPI-5000
- Shawndra SPI

## Ordering
- Model format: `FG-[SIZE CODE]-[MICRON]-[SEAL]-[CORE]-[CAPS]-[OPTIONS]`
- Example: `FG-336-0.3-V-C-C-SS`

### Seal codes
- **B:** Metal Caps W/Buna-N
- **E:** Metal Caps W/EPDM
- **V:** Metal Caps W/Viton

### Core codes
- **C:** Metal Cores
- **IC:** Metal Core, ID Only
- **OC:** Metal Core, OD Only

### Cap codes
- **C:** DOE Metal Caps
- **CE:** Metal Cap W/16mm Hole

### Option codes
- **SS:** Stainless Construction
- **HP:** High Pressure Core
- **HT:** High Temperature Core
- **R:** Reverse Flow

### Size codes
- **12:** OD 3.3", ID 2.1", length 12"
- **24:** OD 3.3", ID 2.1", length 24"
- **36:** OD 3.3", ID 2.1", length 36"
- **72:** OD 3.3", ID 2.1", length 72"
- **312:** OD 4.5", ID 2.1", length 12"
- **324:** OD 4.5", ID 2.1", length 24"
- **336:** OD 4.5", ID 2.1", length 36"
- **372:** OD 4.5", ID 2.1", length 72"
- **536:** OD 5.5", ID 4.25", length 36"
- **572:** OD 5.5", ID 4.25", length 72"

### Micron ratings
- 0.3, 0.5, 1, 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/gas-filters/fg
- Markdown: https://www.fil-trek.com/products/gas-filters/fg.md