Gast 0523, 0323, RV03, RV05, AT03, AT05
Rotary Vane Repair Kit
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Includes 2 O-Rings, 2 Internal Filters,
2 External Filters, 4 Carbon Vanes, and Gaskets.

After many years of operation, if your air pump is still running but not putting out any air, then you probably need to change the 4 vanes as well as replacing the filters, gasket, and O-rings included in this kit

These parts fit the
Gast 0323/0523,
RV03/RV05, AT03/AT05
Rotary Vane Air Pumps.

Note: The 4 carbon vanes are not sold individually because the whole kit is only an additional $2.50.