Several listings show NSF 42 and NSF 372. Some options also list a broader set of NSF/ANSI standards—NSF/ANSI 401 and 53 in addition to 42 and 372.
Product information lists reductions for heavy metals, chlorine, copper and VOCs, and includes PFAS testing with a reported 95.3% reduction in PFOA and PFOS; descriptions also reference reductions for lead, benzene and mercury.
Product details specify an expected service life of about 300 gallons or roughly 6 months, and some listings include install stickers to help track that interval.
Across the listings, heights are about 8.03–8.07 inches. Widths range roughly 2.32–7.01 inches, depths about 2.32–7.09 inches, and weights range from about 0.69 to 3.29 pounds. Exact dimensions vary by specific replacement model, so check the product listing for the model you plan to buy.
Listings state that complimentary month install stickers are included to help track the filter's 300-gallon or 6-month service life.
Descriptions say the filters reduce contaminants while preserving beneficial minerals and that the Sri Lankan coconut shell carbon block improves overall water taste.