FILTER CARTRIDGE NSF certified plastic construction measuring 15.25"W x 4.12"D x 4.12"H provides reliable filtration performance while meeting rigorous safety and quality standards for drinking water systems Lightweight design at 0.01 ounces allows for easy installation and replacement in standard filter housings without adding bulk to your filtration setup Effectively removes contaminants from your water supply, delivering cleaner, safer drinking water for residential or commercial applications