# American Metal Products Expandable Flex Connector

**Brand:** [American Metal Products](https://shop.coreranger.com/brands/American%20Metal%20Products)
**Price:** $89.98–$97.98 · in stock
**URL:** https://shop.coreranger.com/product/american-metal-products-expandable-flex-connector-310279262

## Options

- **Product Height (in.):** 12.75, 18.25
- **Pack Size:** 1, 3

## Variants

| Variant | SKU | Price | Stock |
|---|---|---|---|
| 12.75 / 3 | 4EF3HD | $89.98 | in stock |
| 18.25 / 1 | 4EF5HD | $97.98 | in stock |

## Specifications

| Spec | Value |
|---|---|
| Material | Aluminum/Galv Steel |
| Pack Size | 3 |
| Finish Family | Silver Metallic |
| Product Depth (in.) | 5.25 in |
| Product Width (in.) | 5.25 in |
| Product Height (in.) | 12.75 in |
| Manufacturer Warranty | Limited Lifetime warranty |

## Description

The Model 4EF3HD Expandable Flex Connector is designed for use with gas-fired appliances equipped with draft hoods and other appliances listed for use with Type B Gas Vent. Single Wall Expandable-Flexible Gas Vent Connector (EFC) offers a simple connection between appliance and Type B vent. UL listed and only requires 1 in. minimum airspace clearance to combustibles and has multiple applications, can be for single vent or combined vent.

• Designed to connect a gas fired appliance and a type B gas vent
• Easily expands 1 ft. to 3 ft.
• Includes and integrated draft hood connector