



Radium Check Valve Fuel Filter Conversion Kit
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Description
Radium Check Valve Fuel Filter Conversion Kit
Application: Universal – Radium high flow fuel filters with the standard green outlet (20-0220-0X)
Part Type: Check valve fuel filter outlet conversion kit
Part Number: 20-1221
The Radium 20-1221 Check Valve Fuel Filter Conversion Kit converts the outlet of a standard Radium Engineering high flow fuel filter (green outlet) into a check valve outlet. Flow testing shows a 1psi pressure drop at 300LPH and 2.5psi at 700LPH.
A check valve filter stops fuel rail pressure dropping when the engine or pump is switched off, which helps the engine restart faster. Typical uses are fuel pumps without a built-in back-flow check valve, and venturi jet pumps that run on the high pressure side rather than the return side of the system.
Key Features
- Check Valve Outlet: Converts a standard green-outlet Radium filter to a check valve outlet
- Low Restriction: 1psi drop at 300LPH, 2.5psi drop at 700LPH
- Holds Rail Pressure: Prevents line pressure loss when the pump is off for quicker restarts
- Same Filter Body: Suits the Radium 3-piece 6061 aluminium, Type-II anodised filter with 10AN ORB ports
Optional Parts
- Radium High Flow Fuel Filter (20-0220-03 / -04 / -05) – the standard Radium fuel filter (green outlet) this kit converts
- Radium Engineering Fuel Filter with Check Valve - 10 Micron Stainless (20-1220-03) – complete filter supplied with the check valve outlet already fitted
- Radium Engineering Fuel Filter with Check Valve - 6 Micron Microglass (20-1220-05) – complete filter supplied with the check valve outlet already fitted
- Radium 60mm 2-Piece Clamp Mounting Bracket - Single (20-0218) – 60mm filter mounting clamp
- Radium Fuel Filter Clamp 60mm w/Heat Exchanger (20-0221) – 60mm clamp with cooling fins, works best with airflow (e.g. under the vehicle)
Important Notes
- Converts an existing Radium high flow fuel filter – the filter body and element are not included
- Complete filters with the check valve outlet already fitted are available as 20-1220-03 (10 micron stainless) and 20-1220-05 (6 micron microglass)
- Radium does not list the kit contents – contact Coore if you need to confirm what is supplied
Vehicle Fitment
- Universal – see Application
Not sure if this suits your vehicle? Email sales@coore.com.au and our team will confirm fitment.

