Pentair DGD-5005-20, Big Blue 5 20″ Micron Filter September 16, 2020 by View cart “Pentair GAC-20-BB 20″ Filter” has been added to your cart.Continue Shopping $31.40 20″ Big Blue 5 Micron Filter Pentair DGD-5005-20, Big Blue 5 20" Micron Filter quantity Add to cart Category: Filters Description Description 20″ Big Blue 5 Micron Filter 20″x4.5″ Related products Select optionsAqua Cleer Filters $43.49 – $175.00 Add to cartAlkaline Filter – Reverse Osmosis $30.00 Add to cartPentair GAC-20-BB 20″ Filter $64.95 Add to cartAqua Cleer Reverse Osmosis Membrane $199.00