{"product_id":"red-flint-gravel-1-4-x-1-8-50-bag","title":"Red Flint Gravel 1\/4\" x 1\/8\", 50# Bag","description":"\u003cp\u003e\u003cstrong\u003eRed Flint Gravel 1\/4\" x 1\/8\", 50# bag\u003c\/strong\u003e is a fine-graded quartz support gravel that sits between coarse underbedding and the working media in filtration and softening tanks. Its smaller particle size bridges the gap between larger base gravel and fine treatment media, helping hold the bed in place and keeping media out of the distributor slots.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eScreened grade: 1\/4\" x 1\/8\" fine particle size\u003c\/li\u003e\n\u003cli\u003eSupplied in a 50 lb bag (roughly 22.7 kg)\u003c\/li\u003e\n\u003cli\u003eDense, high-purity red flint quartz\u003c\/li\u003e\n\u003cli\u003eInert and insoluble, so it does not alter water chemistry\u003c\/li\u003e\n\u003cli\u003eUsed as an intermediate gravel layer above coarser support gravel\u003c\/li\u003e\n\u003cli\u003eUniform grading reduces fines migration and bed disturbance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBecause of its finer sizing, this grade is commonly the upper support layer in a multi-tier gravel underbed, cushioning the media and improving backwash distribution. It works in both residential and commercial mineral tanks. Layer it directly above a 1\/2\" x 1\/4\" grade for a graded bed, and refer to your tank's underbedding specification to calculate the correct number of bags for your vessel diameter and height.\u003c\/p\u003e","brand":"Nelsen Corporation","offers":[{"title":"Default Title","offer_id":45668814585909,"sku":"GRAVEL14-50-RED FLINT","price":142.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/4950\/2261\/files\/GRAVEL14-50-REDFLINT-2__50523.1775925406.386.513.jpg?v=1782822304","url":"https:\/\/watersoftenerplus.com\/fr-eu\/products\/red-flint-gravel-1-4-x-1-8-50-bag","provider":"Water Softener Plus","version":"1.0","type":"link"}