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How to Clean or Replace Strainer On A GPRO PRO20/PRO35 Fuel Transfer Pump

Clean or replace the strainer in your GPRO PRO20/PRO35 Pump in eight steps.


If you are looking for a walkthrough on how to clean or replace a strainer within a GPRO PRO20/PRO35 Fuel Transfer Pump, you're in luck! Watch the video above or see the walkthrough below. Remember to wear properly fitting PPE when doing this task!

  1. Turn off the pump and disconnect from power
  2. Remove the strainer access cover with a 1/2" hex wrench
  3. Use a flathead screw driver to remove the strainer assembly
  4. Inspect the assembly (part number 121013-503) for damage or clogs. Replace if needed
  5. Clean the strainer with a soft bristled brush and solvent
  6. Remove the o-ring and lightly coat it with grease
  7. Reinstall the strainer into its slot and the o-ring securely into its groove
  8. Secure the strainer access cover back in its place. Make sure the o-ring is properly seated before tightening in place


Offerings covered by this post:

  1. GPI PRO20 115V Fuel Transfer Pump, 1″ Manual Nozzle, 18′ Hose & Tank Adapter Mount (20 GPM) – PRO20-115MD
  2. GPI PRO20 115V Fuel Transfer Pump w/QM Meter (20 GPM) – PRO20-115PO/QM40G8N
  3. GPI PRO20 115V Fuel Transfer Pump w/QM Meter, 18′ Hose & 1″ Auto Nozzle (20 GPM) – PRO20-115AD/QM40G8N
  4. GPI PRO20 115V Fuel Transfer Pump, 1″ Auto Nozzle, 18′ Hose & Tank Adapter Mount (20 GPM) – PRO20-115AD
  5. GPI 115V/230V PRO35-115AD Fuel Transfer Pump, 1″ Auto Nozzle & 18′ Hose (35 GPM) – PRO35-115AD
  6. GPI 115V/230V PRO35-115 & QM40 Combo, No Nozzle (35 GPM) – PRO35-115PO/QM40G8N
  7. GPI 115V/230V PRO35-115 & QM40 Combo w/1″ Automatic Nozzle (35 GPM) – PRO35-115AD/QM40G8N