Battery life up to 3 years with approx

Battery: 1 × 9V alkaline (included)

and 10 buffers for maximum accuracy

1% Brix / 0

Labs & scientific research

Culligan S1A Sediment Whole House Water Filter System Replacement Cartridge, 2 Pack –20-Micron Medium Filtration, Pleated 891144000359 Battery life up to 3Replacement sediment filter cartridge removes dirt, sand, silt, rust, and scale particles. 20 micron (nominal) filtration. Pleated cellulose construction for increased surface areas and strength. Filter life up to 3 months or 12, 000 gallon. Use with filter model No. HF 150, HF 160, or HF 360. 2 per pack. Size: 9. 75" H x 2. 5" W x 2. 5" DLife ofProduct: 3 mo or 12, 000 galRating: 20 Microns