Radium Engineering FCST-X Extension Kit – for FCST-X 3.7 in. 1.2L

This CNC-machined aluminum extension increases the usable volume of Radium Engineering FCST-X fuel cell surge tanks, providing an additional 1.2L of capacity in a 3.7 in. body. Designed specifically for FCST-X surge tank systems, the extension bolts onto the tank to add surge capacity while maintaining high-strength construction and precise fit. Intended for use with deep fuel cells only, it requires a minimum internal depth of 12" to ensure proper installation and operation.

Features:

• CNC machined aluminum construction
• Adds 1.2L additional capacity
• 3.7 in. body diameter
• Compatible with FCST-X surge tanks
• Requires 12" internal depth minimum