5 x 20" Carbon Block Filter Cartridges

You are purchasing a pack of 5 x 20" Reverse Osmosis carbon block filter cartridges.

These are the best quality filters, and will fit all standard 20" housings.

Important - Please Note: These are 20" filter cartridges and not 10" which is used on standard residential RO units. If you have a small residential unit, please see our 10" filters in our eBay shop.