Want to run a diesel heater in your GFC? The HotPort is a clean, purpose-built 3" (75mm) heater hose pass-through panel kit, 3D printed in tough PAHT-CF plastic with a cover that secures from the inside.
Includes: Inner Plate
Outer Plate
Cover (secures from the inside using thumb screws)
Heater hose Flange
Uses 1/4-20 fasteners and thumb screws (not included).