PA Replacement Air Stone Diffusers
- Air stones sold in a package of (2).
- Air stones should be generally be replaced annually. They can get clogged with algae and not function to their fullest capacity.
- Air stone diffusers fit both PA 2 and PA 4 models.
- The air stones are guaranteed to be in operational order upon delivery but have no warranty. These stones are fragile, so do not pull on the white hose connection.
- If after replacing your air stones you notice you still don't have air flow, consider replacing your aerator's diaphragms. We recommend checking out our full aerator maintenance guide to keep your aerator running in peak condition.
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