OMNIPURE-ELF-1M Features: -Designed to be used as a replacement for extra large format filter head systems. -Carbon block media to reduce chlorine taste and odor as well as other contaminents. -5 Micrcon filter. -0.5 GPM flow rate. -Made in the USA. Product Type: -Reverse-osmosis. Filter Component: -Replacement filter. Country of Manufacture: -United States. Dimensions: Overall Height - Top to Bottom: -12.63". Overall Width - Side to Side: -4.13". Overall Depth - Front to Back: -4.13". Overall Product Weight: -1.75 lbs. Specifications: NSF Certified: -Yes.