PA Replacement Diaphragm
- These replacement diaphragms fit both PA 2 and PA 4 models.
- Diaphragms should be replaced every 1 to 2 years.
- PA 2 models have (1) diaphragm.
- PA 4 models have (2) diaphragms.
- Each diaphragm sold individually.
- Consider replacing your air stones as well to get the maximum air flow into your pond.
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