{"product_id":"cystarry-2-pack-stainless-steel-one-way-check-valve-for-aquarium-co2-line-anti-backflow","title":"Cystarry 2-Pack Stainless Steel One Way Check Valve for Aquarium CO2 Line – Anti-Backflow","description":"\u003ch3\u003eProtect Your Aquarium CO2 System with a Stainless Steel One Way Check Valve\u003c\/h3\u003e\n\u003cp\u003eIn planted aquariums, CO2 delivery needs to be steady to support healthy plant growth. The Cystarry 2-pack stainless steel one-way check valves are compact, about 4 cm long, and install inline on standard CO2 tubing without tools. They are built to withstand routine aquarium maintenance and water exposure.\u003c\/p\u003e\n\u003ch3\u003eWhy backflow protection matters in CO2 setups\u003c\/h3\u003e\n\u003cp\u003eAs tank conditions change—pumps start, tubing warms, or water levels rise—pressure can swing. A backflow can push water toward regulators or CO2 bottles, disrupting delivery and raising maintenance needs. A dedicated check valve helps reduce this risk by allowing gas flow in one direction only.\u003c\/p\u003e\n\u003ch3\u003eKey benefits at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrevents reverse water flow to preserve consistent CO2 delivery.\u003c\/li\u003e\n\u003cli\u003eSuitable for CO2 supply systems in fish tanks, aquariums, and similar rigs.\u003c\/li\u003e\n\u003cli\u003ePremium stainless steel construction resists rust and cleans easily; compact and robust.\u003c\/li\u003e\n\u003cli\u003eDesigned for pressurized CO2 lines, not for use with air pumps.\u003c\/li\u003e\n\u003cli\u003eTwo valves per package add flexibility for dual-line setups or quick replacements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDesign, materials, and durability\u003c\/h3\u003e\n\u003cp\u003eMade from stainless steel, these valves resist corrosion and are easy to wipe clean. The short form factor keeps tubing neatly organized, reducing clutter around the filter or cabinet space where regulators live.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: stainless steel\u003c\/li\u003e\n\u003cli\u003eSize: 8 x 39 mm (D x L)\u003c\/li\u003e\n\u003cli\u003ePackage: 2 x stainless steel check valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to install and maintain\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eCut the CO2 tubing to the desired length and insert the valve inline.\u003c\/li\u003e\n\u003cli\u003eOrient the valve so gas flows from the CO2 source toward the aquarium.\u003c\/li\u003e\n\u003cli\u003eRinse with clean water if needed and dry before reassembling to prevent residue.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n\u003cp\u003eIncludes two stainless steel check valves for immediate use in a single or dual-line CO2 setup.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is this valve used for in an aquarium?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This one-way stainless steel valve prevents water backflow in CO2 lines, protecting regulators and maintaining stable delivery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is it compatible with all CO2 setups?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed for standard CO2 lines in fish tanks; not suitable for air pumps.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cystarry","offers":[{"title":"Default Title","offer_id":53558069854537,"sku":"B08Q4C5RG4","price":24.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/1781\/9465\/files\/cystarry-2pc-stainless-steel-check-valve.jpg?v=1766406407","url":"https:\/\/petvita.co.uk\/products\/cystarry-2-pack-stainless-steel-one-way-check-valve-for-aquarium-co2-line-anti-backflow","provider":"Petvita","version":"1.0","type":"link"}