6 New DuPont Filmtec RO Membranes Filters 75 GPD 75 Gallon Per Day BW60-1812-75
With DuPont QR code labels. Fits most reverse osmosis drinking water systems. FILMTEC BW60-1812-75. For best results the BW60-1812-75 should be changed every 2 to 5 years based on water quality and usage.