# EC Series (EC)

> Fil-Trek Oil & Fuel Filters. Canonical page: https://www.fil-trek.com/products/oil-fuel-filters/ec

Category: Oil & Fuel Filters
Series: EC
Model format: `EC-[SIZE CODE]-[SEAL]`
Example: `EC-718-B`

## Overview
Canister-style elements filled with granular clay designed for the adsorptive purification of hydrocarbon fluids

## How It Works
Fluid passes through a bed of Fullers Earth or Attapulgite clay, where polar compounds, surfactants, and acids chemically adhere to the clay granules

## Applications
- Jet fuel surfactant removal (clay treaters)
- Transformer oil regeneration
- Lube oil acid neutralization
- Solvent purification

## Physical Specifications
- **flow direction:** Outside-to-inside
- **backwash-able:** No
- **outside diameter options:** 3.0", 5.0", 7.0", 11.0"
- **inner diameter options:** 1.0", 1.75", 2.5"
- **nominal length options:** 10", 11", 18", 19"
- **end cap options:** DOE W/ Gaskets
- **caps materials:** Plated Steel
- **cores materials:** Plated Steel
- **size options:** 310, 511, 718, 1120
- **gasket material options:** Buna-N, Viton

## Media Specifications
- **media primary options:** Fullers Earth Clay
- **burst pressure:** 100 PSID
- **max temperature:** 225°F

## Housing Compatibility
- Fil-Trek VF Series

## Ordering
- Model format: `EC-[SIZE CODE]-[SEAL]`
- Example: `EC-718-B`

### Seal codes
- **B:** Buna-N
- **V:** Viton

### Size codes
- **310:** OD 3", ID 1", length 10"
- **511:** OD 5", ID 1.75", length 11"
- **718:** OD 7", ID 2.5", length 18"
- **1120:** OD 11", ID 2.5", length 19"

## 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/oil-fuel-filters/ec
- Markdown: https://www.fil-trek.com/products/oil-fuel-filters/ec.md