This is Multipure's most popular, flagship system. The Aquaversa is a stainless-steel masterpiece with impressive filtration capabilities. (This model was formerly known as the MP750 and depending on the installation kit included, was listed as the MP750SB, MP750SC, MP750SI, or MP1200EL. On the Consumer Reports' listing, it's shown as the MP750, as they have yet to update to the name Aquaversa.) There's plenty of versatility with the Aquaversa; it can be installed as a countertop unit (with the optional countertop install kit), an under-the-sink filter (with the undersink install kit), or simply in-line, which is popular for applications such as icemakers and refrigerators. With the undersink application, there's an optional capacity meter kit available that measures the usage of the filter. It's a great option because it extends the filter life to 1200 gallons instead of the 750 gallons for which the CB6 filter cartridge is rated.This system is a bestseller for a reason. It's the go-to choice for kitchens, icemakers, offices, restaurants, boats, and RV's. When you look at the cost-per-gallon over a several-year period, there are not many better values out there, and certainly none that compare with both the cost-effectiveness and performance of the Aquaversa. Consumer Reports currently ranks the Aquaversa as the top-rated below-sink water filtration system. It's been in that position for years and there's really not a competitor that comes close to the value that the Aquaversa offers at its price point.When it comes to performance, the Aquaversa sets a high benchmark in the industry. It's NSF-certified for NSF Standard 42, which means it treats contaminants of Aesthetic Concern (chlorine and chloramine are in this category); NSF Standard 53, which means it treats contaminants of Health Concern (giardia, cysts, mercury, lead, radon, toxaphene, and dozens of other compounds are tested for adequate removal in this category); and Standard 401, which is a newer category of Emerging Contaminants and Incidental Compounds. That means the Aquaversa will remove drugs such as ibuprofen, atenolol, and naproxen, among others, and pesticides such as linuron and metolachlor. See the link at the bottom of this page for the complete performance data. You really can't go wrong with this system. The owner of this website personally uses the Aquaversa on his kitchen countertop for his drinking water, and never makes pasta, soup, or rice without filtered water from his Aquaversa! You will be surprised at the difference clean, healthy water makes in the taste of these dishes, not to mention the health benefits (a common myth is that boiling removes all impurities from water, but it is simply just that - a myth!). The Aquaversa, as with all Multipure drinking water systems, comes with a 90-day money-back guarantee, and a lifetime warranty, provided that filter has been replaced at least once a year. Aquaversa User Guide Aquaversa Install Guide Aquaversa Specs Aquaversa Performance Data Sold by Multipure Independent Distributor #424074