{"product_id":"growstone-perlite-sponge-rock-alternative","title":"Growstone (perlite\/sponge rock alternative)","description":"A product that can be used as a substitute for perlite or sponge rock. Growstone has 40% more porosity than perlite, and is made from recycled glass which is 100% silica. It is a great product to mix with high moisture retentive materials such as coir and peat moss.\r\n\r\nThe GS-2 Soil Aerator size, which is the most commonly used size in orchid potting applications, has granules that are 1\/4\" to 1\/2\" in size. The GS-1 Hydrostones (hydroponic\/chunky) are 1\/2\" to 3\/4\" in size.\r\n\r\nThe smaller bag size is 4 lbs and roughly 9 liters (8.2 quarts) of material.","brand":"OrchidWeb","offers":[{"title":"9 Liter Bag (Gs-2 Soil Aerator\/small Grade)","offer_id":51517629301045,"sku":"S-24221-0","price":24.0,"currency_code":"USD","in_stock":false},{"title":"1.5 Cu Ft (Gs-1 Hydroponic\/chunky)","offer_id":51517629333813,"sku":"S-24221-1","price":45.0,"currency_code":"USD","in_stock":false},{"title":"9 Liter Bag (Gs-1 Hydroponic\/chunky)","offer_id":51517629366581,"sku":"S-24221-2","price":24.0,"currency_code":"USD","in_stock":false},{"title":"1.5 Cu Ft (Gs-2 Soil Aerator\/small Grade)","offer_id":51517629399349,"sku":"S-24221-3","price":45.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/4313\/1445\/files\/c3aa6ff3-5352-4e4e-ab83-70a6bb39c752__95293.jpg?v=1775363507","url":"https:\/\/store.orchidweb.com\/products\/growstone-perlite-sponge-rock-alternative","provider":"OrchidWeb","version":"1.0","type":"link"}