{"product_id":"automatic-roof-vent-window","title":"Automatic Roof Vent Window for Greenhouse (59–77 °F)","description":"\u003cp\u003eCompatible with all greenhouses (all brands, all materials). Works without electricity thanks to a simple, reliable thermal expansion system. Opens automatically between 59 and 77 °F. Closes again automatically as the temperature drops.\u003c\/p\u003e","brand":"Polygrow Greenhouses","offers":[{"title":"Manual","offer_id":57417107407235,"sku":"PG-VENT-M","price":149.9,"currency_code":"USD","in_stock":true},{"title":"Automatic","offer_id":57417107440003,"sku":"PG-VENT-A","price":189.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/2525\/5811\/files\/greenhouse-accessories-riga-greenhouse-additional-roof-window-automatic-opener-1.webp?v=1771618481","url":"https:\/\/polygrowgreenhouses.com\/products\/automatic-roof-vent-window","provider":"Polygrow Greenhouses","version":"1.0","type":"link"}