Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: No O-Ring Available
Review: The sump on this product has an o-ring larger than other big blue sumps. Unbelievably, neither Amazon nor Purenex have a replacement o-ring. Since periodicaly this o-ring needs to be replaced, the idea of not having an original replacement o-ring isabsurd.
