hydronix sdc-25-2020 whole house, ro systems or commercial use sediment water filter cartridge 2.5" x 20" - 20 micron is up for auction in Industrial & Scientific. The current bid is $1.00, 96% below the $24.12 MSRP, in New/Like New condition. Bid on this item at our Rogers - N Dixieland Rd. location before the auction closes.