A quantum leap in decanting technology, this is no aerator!  Patented technology takes less than 1 second to achieve two to three hours of traditional decanting using pure Oxygen. Developed to dispel the subjectivity associated with "aerator devices", the WinePrO2® is backed with real data.  Results that can be tasted Instantly! Outperforms all aerator devices and allows the user to adjust the decanting process to their own taste preference. It employs user replaceable oxygen decanting cartridges that deliver measurable results. Each cartridge provides 60 - 1 second uses, enough to decant at least a full case of wine (12 750ml bottles) by the glass, or at least 60 glasses of spirits. Don't "aerate" it - "PrO2" it! Inserting the preservation cartridge allows the user to extend the freshness of wine or spirits remaining in an unfinished bottle. The  WinePrO2® employs user replaceable Argon (Ar) preserving cartridges with enough gas to preserve up to 60 opened 750ml bottles. The PrO System Includes the WinePrO2 Device complete with four O2 Decanting Cartridges and four Ar Preservation Cartridges. Replacement decanting and preservation cartridges available in economical 3-packs or 6-packs. The WinePrO2® system comes with a 1 year Warranty against defects in materials and workmanship. PROUDLY MADE IN THE USA WITH FORIEGN AND DOMESTIC PARTS.  Built to last with high quality materials and a majority of stainless steel components throughout.