Radium 20-0484-12 12AN High Flow Fuel Cell Vent Kit for Quick-Fill Racing System

Vehicle Fitment

• Universal - Compatible with any fuel cell equipped with a 12AN male vent fitting

Fitment Notes

• Designed for quick-fill fuel cell systems that use a dry break and dump can
• Not intended for standard-fill or remote-fill neck systems (see Radium 20-0484-08 for 8AN version)
• Requires a 12AN male vent fitting on the fuel cell (not included)
• Compatible with Radium 20-0462 DSV, 12AN ORB to 12AN Male Quick Fill adapter
• 12AN vent kits require 12AN DSV when used with Radium FCST-X and FCST fuel cell surge tank units

Features

• High-flow 12AN design handles increased air displacement demands of quick-fill systems
• Allows air to escape rapidly during fast fuel cell filling via dry break and dump can
• Permits filtered air re-entry as fuel is consumed, preventing tank pressurization
• Includes a clamp-on air filter to block debris from entering the vent line
• Larger 3/4" ID hose provides greater flow capacity versus the standard 8AN kit
• Compatible with Radium 20-0462 DSV quick-fill adapter for seamless integration
• Made in the USA by Radium Engineering to motorsport-grade standards

Specifications

• AN Size: -12 AN (12AN)
• Fitting Angle: Straight
• Fitting Attachment: Female AN
• Hose Inner Diameter: 3/4" (0.75")
• Hose Length Included: 6 ft (1.8 m)
• Minimum Vent Line Vertical Height: 12"
• Application Type: Universal - Quick-Fill Fuel Cell Systems

Included Components

• 1x Clamp-on air filter
• 1x 6 ft (1.8 m) length of 3/4" ID fuel vent hose
• 1x Set of adapter fittings

Product Description

The Radium Engineering 20-0484-12 is a high-flow 12AN Fuel Cell Vent Kit built specifically for quick-fill fuel cell systems that utilize a dry break fitting and dump can. Its larger 3/4" ID vent hose and 12AN sizing allow the elevated air displacement volumes generated during rapid fueling to escape freely, preventing pressure buildup and ensuring safe, controlled venting throughout the fill cycle.

Installation follows the same vent-line routing principles as all Radium vent kits - hose must first route upward from the cell, loop as an expansion chamber, and terminate outside the cabin below and behind the fuel cell away from exhaust. Compatible with the Radium 20-0462 DSV quick-fill adapter and required with 12AN DSV when used on FCST-X and FCST surge tank units, this kit is the go-to solution for endurance racing and competition builds running high-speed refueling setups.