These roller assemblies are specific to the Econ series pumps and are not compatible with any other Stenner pump
These roller assemblies are genuine Stenner replacement tubes and not some lesser quality imitation
Pum...
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The order was processed in a timely manner and was received when promised. I use these for my acid pump that feeds my pool. As with many things, I tend to push the pump tubes further than their recommended service life (1 year): bad idea. They must get micro cracks near the end of their service life because they leak acid onto the Pump Roller Assembly pins and deteriorate them. Hence, need a new Roller Assembly. Lesson learned: change the tubes when recommended.