# HC Series (HC)

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

Category: Oil & Fuel Filters
Series: HC
Model format: `HC-[ID]-[SIZE CODE]-[MICRON]-[SEAL]-[OPTIONS]`
Example: `HC-6-36-5-BN`

## Overview
Cost-effective pleated cellulose cartridges for nominal filtration duties in general lube oil and fuel filtration

## How It Works
Fluid passes outside-to-in through resin-bonded paper media, capturing bulk contaminants via mechanical interception at 90-95% efficiency

## Applications
- Cutting and quench oils
- Machine coolants
- Bulk fuel oil transfer
- Condensate systems

## Physical Specifications
- **flow direction:** Outside-to-inside
- **backwash-able:** No
- **outside diameter options:** 6.0"
- **inner diameter options:** 3.5", 2.625"
- **nominal length options:** 18", 36", 44", 56"
- **caps materials:** Plated Steel
- **cores materials:** Plated Spiral Steel
- **size options:** 6, 7

## Media Specifications
- **media primary options:** Cellulose
- **micron ratings:** 0.5, 1, 3, 5, 10, 15, 25, 40
- **efficiency percent:** 90-95%
- **media rating:** Nominal
- **changeout dp:** 20 PSID
- **burst pressure:** 75 PSID @ 225°F
- **max operating pressure:** 50 PSID @ 68°F
- **max temperature:** 225°F, 300°F (HT - High Temperature)
- **approvals certifications:** None

## Housing Compatibility
- Fil-Trek VF Series

## Ordering
- Model format: `HC-[ID]-[SIZE CODE]-[MICRON]-[SEAL]-[OPTIONS]`
- Examples:
  - `HC-6-36-5-BN`
  - `HC-7-18-10-VI`

### Id codes
- **6:** 6" OD / 3.5" ID
- **7:** 6" OD / 2.625" ID

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

### Option codes
- **HT:** High Temperature

### Size codes
- **18:** OD 6", ID 3.5", length 18"
- **36:** OD 6", ID 3.5", length 36"
- **44:** OD 6", ID 3.5", length 44"
- **56:** OD 6", ID 3.5", length 56"

### Micron ratings
- 0.5, 1, 3, 5, 10, 15, 25, 40

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