{"product_id":"filter-gravel-55lb-no8-underbedding","title":"#8 Pool Filter Gravel 55 lb for Sand Filters","description":"\u003cp data-end=\"381\" data-start=\"68\"\u003e\u003cstrong data-end=\"409\" data-start=\"367\"\u003eLOCAL DELIVERY OR IN-STORE PICKUP ONLY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"381\" data-start=\"68\"\u003eProper filtration starts from the bottom up. In a pool sand filter, the gravel layer is just as important as the filter sand itself. \u003cstrong data-end=\"221\" data-start=\"201\"\u003e#8 Filter Gravel\u003c\/strong\u003e is used as the \u003cstrong data-end=\"259\" data-start=\"237\"\u003eunderbedding layer\u003c\/strong\u003e beneath filter sand to support the laterals, promote even water flow, and prevent sand from entering the plumbing system.\u003c\/p\u003e\n\u003cp data-end=\"669\" data-start=\"383\"\u003eThis \u003cstrong data-end=\"421\" data-start=\"388\"\u003e55 lb bag of #8 filter gravel\u003c\/strong\u003e is sized specifically for pool sand filters and is a critical component during new filter installations, filter rebuilds, or lateral replacements. Using the correct gravel size helps extend filter life and ensures consistent, efficient filtration.\u003c\/p\u003e\n\u003cp data-end=\"756\" data-start=\"671\"\u003eThis is pool-filter-grade gravel—not decorative rock or general landscaping material.\u003c\/p\u003e\n\u003chr data-end=\"761\" data-start=\"758\"\u003e\n\u003ch3 data-end=\"811\" data-start=\"763\"\u003eWhy #8 Filter Gravel Matters in Sand Filters\u003c\/h3\u003e\n\u003cp data-end=\"1032\" data-start=\"813\"\u003eInside a sand filter, water flows downward through the sand bed and exits through the laterals at the bottom. Without a properly sized gravel base, sand can compact unevenly, restrict flow, or damage laterals over time.\u003c\/p\u003e\n\u003cp data-end=\"1071\" data-start=\"1034\"\u003e#8 filter gravel plays a key role by:\u003c\/p\u003e\n\u003cul data-end=\"1289\" data-start=\"1072\"\u003e\n\u003cli data-end=\"1113\" data-start=\"1072\"\u003e\n\u003cp data-end=\"1113\" data-start=\"1074\"\u003eSupporting the filter sand bed evenly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1163\" data-start=\"1114\"\u003e\n\u003cp data-end=\"1163\" data-start=\"1116\"\u003eProtecting laterals from direct sand pressure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1213\" data-start=\"1164\"\u003e\n\u003cp data-end=\"1213\" data-start=\"1166\"\u003ePreventing sand migration into plumbing lines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1289\" data-start=\"1214\"\u003e\n\u003cp data-end=\"1289\" data-start=\"1216\"\u003ePromoting balanced water distribution during filtration and backwashing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1407\" data-start=\"1291\"\u003eSkipping or substituting the gravel layer often leads to poor filtration performance and premature equipment issues.\u003c\/p\u003e\n\u003chr data-end=\"1412\" data-start=\"1409\"\u003e\n\u003ch3 data-end=\"1460\" data-start=\"1414\"\u003eDesigned for Pool Sand Filter Applications\u003c\/h3\u003e\n\u003cp data-end=\"1662\" data-start=\"1462\"\u003eThis gravel is sized to \u003cstrong data-end=\"1506\" data-start=\"1486\"\u003e#8 specification\u003c\/strong\u003e, which is the industry-standard size used in pool sand filters. It allows proper water movement while maintaining structural support for the sand above it.\u003c\/p\u003e\n\u003cp data-end=\"1710\" data-start=\"1664\"\u003eIt is commonly specified by manufacturers for:\u003c\/p\u003e\n\u003cul data-end=\"1812\" data-start=\"1711\"\u003e\n\u003cli data-end=\"1739\" data-start=\"1711\"\u003e\n\u003cp data-end=\"1739\" data-start=\"1713\"\u003eResidential sand filters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1767\" data-start=\"1740\"\u003e\n\u003cp data-end=\"1767\" data-start=\"1742\"\u003eCommercial sand filters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1812\" data-start=\"1768\"\u003e\n\u003cp data-end=\"1812\" data-start=\"1770\"\u003eFilter rebuilds and lateral replacements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1932\" data-start=\"1814\"\u003eUsing the correct gravel size is essential—too small restricts flow, too large fails to support the sand bed properly.\u003c\/p\u003e\n\u003chr data-end=\"1937\" data-start=\"1934\"\u003e\n\u003ch3 data-end=\"1971\" data-start=\"1939\"\u003eWhen to Use #8 Filter Gravel\u003c\/h3\u003e\n\u003cul data-end=\"2187\" data-start=\"1972\"\u003e\n\u003cli data-end=\"2009\" data-start=\"1972\"\u003e\n\u003cp data-end=\"2009\" data-start=\"1974\"\u003eInstalling a new pool sand filter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2048\" data-start=\"2010\"\u003e\n\u003cp data-end=\"2048\" data-start=\"2012\"\u003eRebuilding an existing sand filter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2086\" data-start=\"2049\"\u003e\n\u003cp data-end=\"2086\" data-start=\"2051\"\u003eReplacing broken or worn laterals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2130\" data-start=\"2087\"\u003e\n\u003cp data-end=\"2130\" data-start=\"2089\"\u003eCorrecting sand blow-back into the pool\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2187\" data-start=\"2131\"\u003e\n\u003cp data-end=\"2187\" data-start=\"2133\"\u003eRestoring proper filtration after years of operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2192\" data-start=\"2189\"\u003e\n\u003ch3 data-end=\"2220\" data-start=\"2194\"\u003eProduct Specifications\u003c\/h3\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"2503\" data-start=\"2222\"\u003e\n\u003cthead data-end=\"2249\" data-start=\"2222\"\u003e\n\u003ctr data-end=\"2249\" data-start=\"2222\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2238\" data-start=\"2222\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2249\" data-start=\"2238\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"2503\" data-start=\"2260\"\u003e\n\u003ctr data-end=\"2302\" data-start=\"2260\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2275\" data-start=\"2260\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd data-end=\"2302\" data-start=\"2275\" data-col-size=\"sm\"\u003ePool Sand Filter Gravel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2323\" data-start=\"2303\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2317\" data-start=\"2303\"\u003eGravel Size\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2323\" data-start=\"2317\"\u003e#8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2346\" data-start=\"2324\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2337\" data-start=\"2324\"\u003eBag Weight\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2346\" data-start=\"2337\"\u003e55 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2389\" data-start=\"2347\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2361\" data-start=\"2347\"\u003eApplication\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2389\" data-start=\"2361\"\u003eSand filter underbedding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2438\" data-start=\"2390\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2401\" data-start=\"2390\"\u003eFunction\u003c\/td\u003e\n\u003ctd data-end=\"2438\" data-start=\"2401\" data-col-size=\"sm\"\u003eSupports sand \u0026amp; protects laterals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2487\" data-start=\"2439\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2453\" data-start=\"2439\"\u003eTypical Use\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2487\" data-start=\"2453\"\u003eNew installs \u0026amp; filter rebuilds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2503\" data-start=\"2488\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2494\" data-start=\"2488\"\u003eSKU\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2503\" data-start=\"2494\"\u003e1450G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-end=\"2508\" data-start=\"2505\"\u003e\n\u003ch3 data-end=\"2532\" data-start=\"2510\"\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp data-end=\"2796\" data-start=\"2534\"\u003eThe gravel layer is installed \u003cstrong data-end=\"2574\" data-start=\"2564\"\u003ebefore\u003c\/strong\u003e adding filter sand. Once laterals are in place, gravel is added evenly around them, followed by the specified amount of filter sand. Always follow your filter manufacturer’s recommendations for gravel and sand quantities.\u003c\/p\u003e\n\u003chr data-end=\"2801\" data-start=\"2798\"\u003e\n\u003ch3 data-end=\"2853\" data-start=\"2803\"\u003eBuy with Confidence from Benchmark Pool Supply\u003c\/h3\u003e\n\u003cp data-end=\"3001\" data-start=\"2855\"\u003eWhen you purchase \u003cstrong data-end=\"2893\" data-start=\"2873\"\u003e#8 Filter Gravel\u003c\/strong\u003e from Benchmark Pool Supply, you’re buying a product selected specifically for real pool filtration systems.\u003c\/p\u003e\n\u003cp data-end=\"3018\" data-start=\"3003\"\u003eYou can expect:\u003c\/p\u003e\n\u003cul data-end=\"3233\" data-start=\"3019\"\u003e\n\u003cli data-end=\"3066\" data-start=\"3019\"\u003e\n\u003cp data-end=\"3066\" data-start=\"3021\"\u003eCorrect gravel sizing for pool sand filters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3120\" data-start=\"3067\"\u003e\n\u003cp data-end=\"3120\" data-start=\"3069\"\u003eProducts chosen for professional pool service use\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3178\" data-start=\"3121\"\u003e\n\u003cp data-end=\"3178\" data-start=\"3123\"\u003eKnowledgeable support from pool equipment specialists\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3233\" data-start=\"3179\"\u003e\n\u003cp data-end=\"3233\" data-start=\"3181\"\u003eReliable local supply from a trusted pool retailer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"3304\" data-start=\"3235\"\u003eThis is the proper foundation for a properly functioning sand filter.\u003c\/p\u003e","brand":"Target","offers":[{"title":"Default Title","offer_id":42038190276682,"sku":"1450G","price":22.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/6580\/7178\/files\/gravel.webp?v=1749240126","url":"https:\/\/benchmarkpoolsupply.com\/products\/filter-gravel-55lb-no8-underbedding","provider":"Benchmark Pool Supply","version":"1.0","type":"link"}