Plastic Barbed Hose Connectors — Reliable Reducing Fittings for Fuel, Water & Vacuum Lines When a leaking or mismatched hose fitting brings a repair job to a halt, having the right connector on hand makes all the difference. Whether you are a home mechanic routing coolant lines, a gardener splicing irrigation tubing, or a hobbyist building a pneumatic rig, these plastic barbed hose connectors give you a secure, push-fit seal without tools or clamps. Each fitting is molded from engineering-grade plastic and is available in five body shapes — 90° elbow, straight "I", T-branch, Y-branch, and X-cross — with tube outer diameters ranging from Ø4 mm (~5/32 in) up to Ø20 mm (~25/32 in). Metric and 1/4" BSP-compatible sizes are stocked. Sold in packs of 2, 10, or 20 pieces so you can match the quantity to the job. Typical use cases include automotive vacuum hose repairs, small-engine fuel line routing, drip-irrigation manifold splits, aquarium air-line branching, and workshop dust-collection ducting — anywhere a lightweight, corrosion-free plastic barbed hose fitting is needed instead of a metal alternative. 🔗 Compatibility: Designed for flexible rubber, silicone, and PVC tubing. Match the barb diameter (Ø) to your tube's inner diameter for a secure push-fit seal. Not rated for high-pressure hydraulic systems. ✅ Key Features of These Plastic Barbed Hose Connectors 🔄 Five connector shapes — 90° elbow, straight "I", T, Y, and X configurations cover virtually every routing scenario in a single product family. 📏 Wide size range — barb diameters from Ø4 mm to Ø20 mm (approx. 5/32" to 25/32") including 1/4" BSP-compatible variants, reducing the need for adapters. ⚖️ Lightweight engineering plastic — resists corrosion, moisture, and common fuels; significantly lighter than brass or aluminum fittings for weight-sensitive builds. 🛠️ Tool-free push-fit installation — barbed profile grips the inner wall of flexible tubing on insertion; no clamps required for low-pressure applications. 📦 Flexible pack quantities — available in 2 pc, 10 pc, and 20 pc packs so you can stock exactly what you need for a single repair or a larger project. 🌊 Multi-fluid compatibility — suitable for water, fuel, air, and vacuum lines in automotive, garden, aquarium, and workshop environments. 📐 Technical Specifications — Plastic Barbed Hose Fittings Material Engineering-grade plastic (PA / PP, corrosion-resistant) Connector Shapes 90° Elbow, Straight "I", T-branch, Y-branch, X-cross Barb Diameter (OD) Ø4 mm – Ø20 mm (see variant options) BSP-Compatible Sizes G 1/4" variants: Ø4.8, Ø6.4, Ø7.9, Ø9.5, Ø11.1 mm Pack Quantity 2 pcs / 10 pcs / 20 pcs (see variant options) Recommended Tube Type Flexible rubber, silicone, or PVC tubing Pressure Rating Low-pressure applications (fuel, water, vacuum, air) Color / Finish See variant options Weight (per piece) See variant options ❓ Frequently Asked Questions How do I choose the right barb diameter for my hose? Match the barb diameter (Ø) listed in the variant name to your hose's inner diameter (ID). For example, if your tubing has a 6 mm inner bore, select the Ø6 mm barb. A slight interference fit is normal and creates the seal — the barb should require a firm push to seat fully inside the tube. What is the difference between the 90° elbow, "I", T, Y, and X shapes? The 90° elbow redirects a single hose run at a right angle. The "I" (straight) joins two hoses end-to-end or reduces between two sizes. The T splits one line into two at 90°. The Y splits one line into two at an angle, useful where space is tight. The X creates a four-way junction. Choose based on your routing geometry. Do I need hose clamps with these fittings? For low-pressure applications such as vacuum lines, aquarium air tubing, and garden drip irrigation, the barbed profile alone typically provides a secure seal without clamps. For fuel lines or any application with vibration or pressure above approximately 0.5 bar, adding a small worm-drive or spring clamp over the barb is recommended for extra retention. Are these fittings compatible with fuel (petrol/gasoline)? These plastic barbed connectors are used in small-engine and automotive vacuum/fuel routing applications. However, long-term compatibility depends on the specific fuel blend and concentration. For continuous submersion in aggressive fuels or high-ethanol blends, verify compatibility with your tubing material and consider a fuel-rated alternative if in doubt. What does "G 1/4"" mean in the size name? "G 1/4"" refers to the BSP (British Standard Pipe) 1/4" thread standard, which is a common sizing reference used for pneumatic and fluid fittings. In this product range it indicates the nominal port size the fitting is dimensioned to work alongside — the actual barb outer diameter is listed separately (e.g., Ø4.8 mm, Ø6.4 mm). Use this to cross-reference with pneumatic system specs. Can I use these connectors for aquarium air lines? Yes. The plastic construction is inert in freshwater and saltwater environments, making these fittings well-suited for splitting or redirecting aquarium air pump tubing. The T and Y shapes are especially popular for distributing air to multiple tanks or airstones from a single pump outlet. Which pack size should I order? The 2 pc pack is ideal for a single repair or prototype. The 10 pc pack suits a small project or keeping a few spares on hand. The 20 pc pack offers the best per-unit value for larger installations such as irrigation manifolds, workshop dust collection, or stocking a toolbox for ongoing maintenance work. 🛒 Select your Size and Quantity above, then add to cart. { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How do I choose the right barb diameter for my hose?", "acceptedAnswer": { "@type": "Answer", "text": "Match the barb diameter listed in the variant name to your hose's inner diameter (ID). A slight interference fit is normal and creates the seal — the barb should require a firm push to seat fully inside the tube." } }, { "@type": "Question", "name": "What is the difference between the 90° elbow, I, T, Y, and X shapes?", "acceptedAnswer": { "@type": "Answer", "text": "The 90° elbow redirects a single hose run at a right angle. The straight I joins two hoses end-to-end. The T splits one line into two at 90°. The Y splits one line into two at an angle. The X creates a four-way junction." } }, { "@type": "Question", "name": "Do I need hose clamps with these fittings?", "acceptedAnswer": { "@type": "Answer", "text": "For low-pressure applications such as vacuum lines and garden drip irrigation, the barbed profile alone typically provides a secure seal. For fuel lines or applications with vibration or pressure above approximately 0.5 bar, adding a clamp is recommended." } }, { "@type": "Question", "name": "Are these fittings compatible with fuel (petrol/gasoline)?", "acceptedAnswer": { "@type": "Answer", "text": "These plastic barbed connectors are used in small-engine and automotive vacuum/fuel routing. For continuous submersion in aggressive fuels or high-ethanol blends, verify compatibility with your tubing material." } }, { "@type": "Question", "name": "What does G 1/4 mean in the size name?", "acceptedAnswer": { "@type": "Answer", "text": "G 1/4 refers to the BSP (British Standard Pipe) 1/4 inch thread standard, a common sizing reference for pneumatic and fluid fittings. The actual barb outer diameter is listed separately in the variant name." } }, { "@type": "Question", "name": "Can I use these connectors for aquarium air lines?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. The plastic construction is inert in freshwater and saltwater environments, making these fittings well-suited for splitting or redirecting aquarium air pump tubing." } }, { "@type": "Question", "name": "Which pack size should I order?", "acceptedAnswer": { "@type": "Answer", "text": "The 2 pc pack is ideal for a single repair. The 10 pc pack suits a small project. The 20 pc pack offers the best per-unit value for larger installations such as irrigation manifolds or workshop dust collection." } } ] }
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