Product review (2 stars): Buy this filter if you want obnoxious feedback solicitation!
Eco BlueLife sent me multiple nag emails asking for a seller review on Amazon. Even after I left a positive seller review, I got a phone call (!) today thanking me for my positive seller review, and asking me to review the product.

Does the filter work? I guess so; it fits, and black charcoal stopped coming out after a few gallons (normal). But next time I'll buy a water filter that doesn't come with ads to my email and cell phone.