{"product_id":"hydrofarm-block-covers-dual-sided-light-blocking-covers-for-rockwool-blocks-4-inch-and-6-inch-pack-of-40","title":"Hydrofarm Block Covers - Dual-Sided Light-Blocking Covers for Rockwool Blocks - 4 Inch and 6 Inch, Pack of 40","description":"\u003cp\u003eHydrofarm Block Covers fit over rockwool blocks to block light from the growing media and reflect light back up to plant leaves. Covering the block surface also helps eliminate algae and mildew growth.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBlocks light from the growing media\u003c\/li\u003e\n\u003cli\u003eReflects light to the plant leaves\u003c\/li\u003e\n\u003cli\u003eHelps eliminate algae and mildew growth\u003c\/li\u003e\n\u003cli\u003e40 dual-sided covers per pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eProduct Details\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSizes: 4 inch and 6 inch rockwool block covers\u003c\/li\u003e\n\u003cli\u003ePack size: 40 covers\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp class=\"sku-info\"\u003e\u003cstrong\u003eModel # \/ SKU:\u003c\/strong\u003e 714820 (4 in), 714822 (6 in)\u003c\/p\u003e","brand":"Hydrofarm","offers":[{"title":"4 Inch - Pack of 40","offer_id":67647264784575,"sku":"714820","price":16.91,"currency_code":"USD","in_stock":true},{"title":"6 Inch - Pack of 40","offer_id":67647264817343,"sku":"714822","price":26.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/9334\/4191\/files\/unnamed_6199e749-4927-43da-8681-98a9641f5154.jpg?v=1791819312","url":"https:\/\/www.dsgardensupplies.com\/products\/hydrofarm-block-covers-dual-sided-light-blocking-covers-for-rockwool-blocks-4-inch-and-6-inch-pack-of-40","provider":"DS Garden Supplies","version":"1.0","type":"link"}