Jandy DEV48 DE Filter For unsurpassed water clarity, choose Jandys DEV Series of Diatomaceous Earth filters. DEV filters have a curved grid design that create balanced water flow throughout the filter tank. Diatomatious earth is made of tiny fossil exoskeletons. When used with the DEV filter, debris as small as 5 microns are trapped, returning highly filtered water to your pool. Jandy DEV48 Features: 48 Square Foot DE Filter 96 Gallon Per Minute Maximum Flow Rate Versa Plumb ready for quick connection to Zodiac equipment Clean/dirty indicator on pressure gauge allows you to know exactly when to clean the filter for optimal filtration and water savings Easy grip handles for comfortable filter maintenance Extra large drain port Heavy-duty, durable, composite body made of corrosion and UV resistant materials Heavy duty, anti-corrosion band clamp Designed to work with all Jandy Backwash Valves Corrosion and UV resistant, high impact extra large tank Includes 2" x 2-1/2" universal unions Dimensions: 25" Diameter Circle X 41" Height Note: Backwash Valve Sold Separately Jandy DEV48