{"product_id":"4-block-covers-40-pk","title":"Rockwool Block Covers, 4\", Pack of 40","description":"\u003cdiv\u003e\n\u003cdiv\u003ePLASTIC BLOCK COVERS\u003c\/div\u003e\n\u003cdiv\u003eReflect light to plant leaves, where it’s needed most. Block light from media. Eliminate algae and mildew growth. 40 dual sided block covers per pack. Works great with GRODAN Blocks.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eBlock light from media\u003c\/li\u003e\n\u003cli\u003eReflect light to plant leaves where it's needed most\u003c\/li\u003e\n\u003cli\u003eEliminate algae and mildew growth\u003c\/li\u003e\n\u003cli\u003e40 dual-sided block covers per pack\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HYDFM","offers":[{"title":"Default","offer_id":47423452774626,"sku":"415382","price":6.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/5758\/6146\/files\/HGCOV4_1.jpg?v=1771178918","url":"https:\/\/savannahhydroponics.myshopify.com\/products\/4-block-covers-40-pk","provider":"Savannah Hydroponics \u0026 Organics","version":"1.0","type":"link"}