{"product_id":"oak-refills-and-filters","title":"OAK Refills \u0026 Filters | The Liquid Tree","description":"\u003ch2\u003eKeep Your OAK Living at Its Best\u003c\/h2\u003e\u003cp\u003eYour OAK — The Liquid Tree works hardest when its algae is fresh and its filter is clean. These refill and filter options make it effortless to maintain peak air purification performance: removing 99.99% of dust and continuously producing fresh oxygen.\u003c\/p\u003e\u003ch3\u003eChoose Your Refill Option\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6-Month Algae \u0026amp; Nutrient Refill ($300)\u003c\/strong\u003e — Fresh live spirulina culture + full nutrient pack to sustain your OAK's living ecosystem for 6 months.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6-Month Refill + New HEPA Filter ($325)\u003c\/strong\u003e — The complete renewal bundle. Best value.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew HEPA Filter ($50)\u003c\/strong\u003e — Standalone HEPA filter replacement. Recommended every 6–12 months.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCompatible with OAK — The Liquid Tree only.\u003c\/em\u003e\u003c\/p\u003e","brand":"AlGreen","offers":[{"title":"6-Month Algae \u0026 Nutrient Refill","offer_id":53960189313316,"sku":null,"price":275.0,"currency_code":"USD","in_stock":true},{"title":"6-Month Algae \u0026 Nutrient Refill + New HEPA Filter","offer_id":53960189346084,"sku":null,"price":300.0,"currency_code":"USD","in_stock":true},{"title":"New HEPA Filter","offer_id":53960189378852,"sku":null,"price":35.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/algreentech.com\/en-us\/products\/oak-refills-and-filters","provider":"AlGreen","version":"1.0","type":"link"}