Air Filter Element for Stratus Rocking Piston Compressors Phosphate Removers It is ideal for algae

It is ideal for algae control in Ornamental Ponds

Skimmer or AquaFalls # into our search engine for more information on each component

but without the air diffuser

Mini Boulder

Air Filter Element for Stratus Rocking Piston Compressors Phosphate Removers It is ideal for algaeThis air filter element is used with Stratus Rocking Piston Compressors. There was a switch over in 2013, so be sure that yours is this style rather than the former ERPA. If you are upgrading, you first need to purchase complete air filter #ERPF1. Dirty air filters are the biggest cause of compressor failure. We recommend replacing this filter every spring and fall.