{"product_id":"2pcs-diy-co2-generator-bottle-caps-quick-twist-reactors-for-aquarium-co2-systems","title":"DIY CO2 Generator Bottle Caps - 2 Pack","description":"\u003cp data-end=\"701\" data-start=\"264\"\u003eThese quick-twist CO2 generator caps are ideal for DIY aquarium setups. Designed to fit standard soda or water bottles, they allow you to create a CO2 reactor for your planted tank or even a brine shrimp hatchery.\u003c\/p\u003e\n\u003cp data-end=\"701\" data-start=\"264\"\u003eOne side connects to your air pump, the other directs gas or shrimp into your aquarium. Compatible with 4 mm inner and 6 mm outer diameter tubing, these caps make it easy to add or regulate CO2 for healthier aquatic plants.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eKey Features and Important Notes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"672\" data-end=\"763\"\u003e\n\u003cstrong data-start=\"672\" data-end=\"692\"\u003eWhat’s Included:\u003c\/strong\u003e\u003cbr data-start=\"692\" data-end=\"695\"\u003e– 2 x DIY CO2 Bottle Caps\u003cbr data-start=\"720\" data-end=\"723\"\u003e⚠️ Airline tubing and pump not included.\u003c\/li\u003e\n\u003cli data-start=\"765\" data-end=\"823\"\u003e\n\u003cstrong data-start=\"765\" data-end=\"778\"\u003eMaterial:\u003c\/strong\u003e\u003cbr data-start=\"778\" data-end=\"781\"\u003eDurable plastic suitable for aquarium use.\u003c\/li\u003e\n\u003cli data-start=\"825\" data-end=\"903\"\u003e\n\u003cstrong data-start=\"825\" data-end=\"834\"\u003eSize:\u003c\/strong\u003e\u003cbr data-start=\"834\" data-end=\"837\"\u003eFits standard PET soda\/water bottles (approx. 28 mm neck diameter)\u003c\/li\u003e\n\u003cli data-start=\"905\" data-end=\"979\"\u003e\n\u003cstrong data-start=\"905\" data-end=\"923\"\u003eCompatibility:\u003c\/strong\u003e\u003cbr data-start=\"923\" data-end=\"926\"\u003eDesigned for 4 mm inner \/ 6 mm outer diameter tubing.\u003c\/li\u003e\n\u003cli data-start=\"981\" data-end=\"1063\"\u003e\n\u003cstrong data-start=\"981\" data-end=\"1003\"\u003eMulti‑Purpose Use:\u003c\/strong\u003e\u003cbr data-start=\"1003\" data-end=\"1006\"\u003ePerfect for DIY CO2 injection or brine shrimp hatcheries.\u003c\/li\u003e\n\u003cli data-start=\"1065\" data-end=\"1137\"\u003e\n\u003cstrong data-start=\"1065\" data-end=\"1082\"\u003eInstallation:\u003c\/strong\u003e\u003cbr data-start=\"1082\" data-end=\"1085\"\u003eQuick‑twist design for easy setup on common bottles.\u003c\/li\u003e\n\u003cli data-start=\"1139\" data-end=\"1184\"\u003e\n\u003cstrong data-start=\"1139\" data-end=\"1152\"\u003eWarranty:\u003c\/strong\u003e\u003cbr data-start=\"1152\" data-end=\"1155\"\u003e1‑Year Warranty (\u003cstrong\u003e\u003ca href=\"https:\/\/www.castledawnaquatics.com\/pages\/warranty-terms-conditions\" title=\"WARRANTY TERMS AND CONDITIONS - Castle Dawn Aquatics\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eT\u0026amp;Cs apply\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Castle Dawn Aquatics","offers":[{"title":"Default Title","offer_id":51085956350233,"sku":"000028L-FG","price":6.7,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0036\/7679\/9046\/files\/DIYPlantedAquariumCO2GeneratorBottleCapd.jpg?v=1753356915","url":"https:\/\/www.castledawnaquatics.com\/products\/2pcs-diy-co2-generator-bottle-caps-quick-twist-reactors-for-aquarium-co2-systems","provider":"Castle Dawn Aquatics","version":"1.0","type":"link"}