1" Jumbo, Heavy Duty Whole House Sediment Water Filter, Install Easily On 1" Main Water Lines, 4 Times The Capacity Of Standard 10 Filters, High Flow, Heavy Sediment Capabilities With Minimal Pressure Drop, Includes Housing Wrench, Use With Spas, Hot Tubs, Wells, Trickle Irrigation, Farm Uses & Other Commercial/Indus Or Industrial Applications, Replacement Cartridges Include Model #CP5-BBS True Value #529-336 Or Model #R50-BBS True Value #852-582, Cartridges Sold Separately.