P8CH-950 Proline | Filter Cartridge, Proline, Diameter: 8", Length: 6", Top: Handle, Bottom: 2" Male SAE Thread, 50 sq ft - Pool and Spa Parts Depot
Amazon.com: Replacement Filter Kit for Proline Plus RO Water Filtration System - 1 year Supply of 5 Compatible Filters Includes Reverse Osmosis Membrane, Carbon Block Filters, Sediment Filter, and GAC Cartridge :
Waterworld Proline Filters | Proline Plus Filters | RO Superstore