{"product_id":"co2-schlauch-pro-4-6mm-2m","title":"CO2 Schlauch PRO 4\/6 mm (2 m)","description":"\u003cdiv class=\"ai-seo-content\"\u003e\n\n\u003ch2\u003eCO2 Schlauch PRO 4\/6 mm – Premium CO2-Resistant Tubing for Planted Aquariums\u003c\/h2\u003e\n\n\u003cp\u003eThe CO2 Schlauch PRO 4\/6 mm is a professional-grade carbon dioxide tubing designed specifically for planted aquariums and aquascaping setups. With an inner diameter of 4 mm and an outer diameter of 6 mm, this 2-meter hose matches the standard connection size used by virtually all CO2 regulators, diffusers, bubble counters, and solenoid valves available on the market today.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eUnlike standard silicone airline tubing, this PRO tubing is manufactured from CO2-resistant materials — either high-grade polyurethane (PU) or food-safe silicone — that prevent gas permeation and diffusion through the hose walls. This ensures that every bubble of CO2 injected into your system reaches the diffuser efficiently, without losses that would otherwise waste your CO2 supply and destabilize plant growth.\u003c\/p\u003e\n\n\u003ch3\u003eMain Purpose\u003c\/h3\u003e\n\u003cp\u003eThe primary function of this tubing is to create a reliable, gas-tight connection between your CO2 cylinder or bottle and the downstream components of your CO2 system: pressure regulator, solenoid valve, needle valve, bubble counter, check valve, and ultimately your CO2 diffuser or reactor. It is the critical \"last mile\" component in any pressurized CO2 fertilization system.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCO2-impermeable material prevents gas loss through the walls — unlike silicone or standard airline tubing\u003c\/li\u003e\n  \u003cli\u003e2-meter length provides ample reach for most aquarium cabinet setups\u003c\/li\u003e\n  \u003cli\u003e4\/6 mm size is the universal standard for CO2 equipment — fits all major brands\u003c\/li\u003e\n  \u003cli\u003eTransparent or lightly tinted design blends discreetly with aquarium equipment\u003c\/li\u003e\n  \u003cli\u003eFlexible yet kink-resistant — maintains consistent CO2 flow even around tight corners\u003c\/li\u003e\n  \u003cli\u003ePressure-rated for safe use with compressed CO2 systems\u003c\/li\u003e\n  \u003cli\u003eCompatible with glass CO2 equipment (tip: briefly dip end in hot water to soften before pushing onto glass fittings)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eInner diameter (ID): 4 mm\u003c\/li\u003e\n  \u003cli\u003eOuter diameter (OD): 6 mm\u003c\/li\u003e\n  \u003cli\u003eLength: 2 meters\u003c\/li\u003e\n  \u003cli\u003eMaterial: CO2-resistant (polyurethane or food-safe silicone)\u003c\/li\u003e\n  \u003cli\u003ePressure rating: suitable for pressurized CO2 systems (manufacturer has not officially published exact bar rating for this specific item)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAquarium Applications\u003c\/h3\u003e\n\u003cp\u003eThis tubing is suitable for all planted freshwater aquariums using pressurized CO2 injection systems. It connects seamlessly with external diffusers, internal diffusers, CO2 reactors, inline diffusers, and bubble counters. Ideal for Nature Aquarium style tanks, Dutch aquascapes, and any aquarium focused on high-light, high-CO2 plant cultivation.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAll CO2 regulators with 4\/6 mm output connections\u003c\/li\u003e\n  \u003cli\u003eAll inline and external CO2 diffusers in 4\/6 mm size\u003c\/li\u003e\n  \u003cli\u003eBubble counters and check valves with 4\/6 mm connections\u003c\/li\u003e\n  \u003cli\u003eCompatible with major brands: Dennerle, JBL, Aquili, CO2Art, Chihiros, ADA, and others\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBeginner and advanced aquascapers\u003c\/li\u003e\n  \u003cli\u003ePlanted aquarium enthusiasts\u003c\/li\u003e\n  \u003cli\u003eHigh-tech CO2 injection setups\u003c\/li\u003e\n  \u003cli\u003eAquarium hobbyists replacing degraded silicone tubing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use regular airline tubing instead?\u003c\/strong\u003e No. Standard silicone or vinyl airline tubing is CO2-permeable and will allow significant gas loss over time. CO2-specific tubing is essential for efficiency and long-term performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this tubing safe for fish and shrimp?\u003c\/strong\u003e Yes. The materials used are food-safe and aquarium-safe, with no leaching of harmful substances into the water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I connect it to glass fittings?\u003c\/strong\u003e Briefly dip the end of the tubing into very hot (not boiling) water for a few seconds to soften it, then push firmly onto the glass connection. It will seal tightly as it cools.\u003c\/p\u003e\n\n\u003ch3\u003eExpert Recommendations\u003c\/h3\u003e\n\u003cp\u003eAlways use CO2-resistant tubing in pressurized systems. Silicone tubing causes invisible CO2 losses that are difficult to diagnose and waste expensive CO2. Replace tubing every 2–3 years or when it shows signs of yellowing, stiffness, or cracking to maintain a fully sealed system.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"AS Aquaristik","offers":[{"title":"Default Title","offer_id":61633298530634,"sku":"11c50051","price":3.57,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/3685\/5370\/files\/www.aquarium-boutique.comt_18.jpg?v=1780171421","url":"https:\/\/aquarium-boutique.com\/products\/co2-schlauch-pro-4-6mm-2m","provider":"Aquarium Boutique","version":"1.0","type":"link"}