{"product_id":"4mm-plastic-t-connector-3-way-aquarium-air-pump-tubing-joints","title":"4mm Plastic 3-Way T-Connectors for Aquarium Air Pump Tubing","description":"\u003ch2\u003e4mm Plastic T-Connectors for Aquarium Air Lines – 10 or 20 Pack\u003c\/h2\u003e\n\u003cp\u003eKeep your fish tank aeration running smoothly with these durable \u003cstrong\u003e3-way T-shaped air line connectors\u003c\/strong\u003e. Designed to split and distribute airflow from a single air pump to multiple outlets, these connectors make it easy to manage tubing layouts in freshwater and saltwater aquariums alike.\u003c\/p\u003e\n\n\u003ch3\u003eWhy You'll Love These Connectors\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile 3-Way Split:\u003c\/strong\u003e Effortlessly divide airflow from your air pump to multiple air stones, decorations, or filtration accessories.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Fit:\u003c\/strong\u003e Compatible with standard 4mm (3\/16\") inner diameter aquarium air line tubing and CO₂ tubing — fits most popular brands.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNon-Corrosive Plastic:\u003c\/strong\u003e Made from high-quality, water-safe plastic that resists corrosion and degradation even in constant water contact environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecure \u0026amp; Leak-Resistant:\u003c\/strong\u003e Snug, tight-fitting joints help maintain consistent air pressure without unwanted leaks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValue Packs Available:\u003c\/strong\u003e Choose between a 10-piece or 20-piece pack — ideal for setting up new tanks or stocking up for multiple aquariums.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic (non-corrosive)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e 3-Way T-Shape\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Tubing Inner Diameter:\u003c\/strong\u003e 4mm \/ 3\/16\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack Size:\u003c\/strong\u003e 10PCS or 20PCS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e SH-Pet-196\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFreshwater \u0026amp; saltwater aquariums\u003c\/li\u003e\n  \u003cli\u003eCO₂ diffusion systems\u003c\/li\u003e\n  \u003cli\u003eMulti-tank setups\u003c\/li\u003e\n  \u003cli\u003eAquarium hobbyists and professional aquarists\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/aquarium-suction-cup-clips-tube-heater-holders-5-pack\"\u003e5-Pack Aquarium Suction Cup Clips – Tube \u0026amp; Heater Holders\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/cat-fishing-boat-aquarium-ornament-resin-fish-tank-decor\"\u003eCat Fishing Boat Aquarium Ornament | Resin Fish Tank Decor\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.fws.gov\/\" target=\"_blank\" rel=\"noopener\"\u003eU.S. Fish and Wildlife Service\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What size aquarium tubing do these 4mm T-connectors fit?\u003c\/h4\u003e\n\u003cp\u003eA: These 3-way T-connectors are designed to fit standard aquarium air line tubing with a 4mm (3\/16\") inner diameter. They are also compatible with most CO₂ tubing of the same diameter, making them versatile for a range of aquarium setups.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use these connectors in a saltwater aquarium?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! These connectors are made from non-corrosive, water-safe plastic, making them suitable for both freshwater and saltwater aquarium environments without degrading over time.\u003c\/p\u003e\n\u003ch4\u003eQ: How many connectors come in each pack?\u003c\/h4\u003e\n\u003cp\u003eA: You can choose between a 10-piece pack or a 20-piece pack, depending on your needs. The 20-piece pack is great for multi-tank setups or keeping extras on hand for future use.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What size aquarium tubing do these 4mm T-connectors fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These 3-way T-connectors are designed to fit standard aquarium air line tubing with a 4mm (3\/16\\\") inner diameter. They are also compatible with most CO₂ tubing of the same diameter, making them versatile for a range of aquarium setups.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use these connectors in a saltwater aquarium?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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