{"product_id":"pvc-aquarium-elbow-straight-fitting-20mm-barbed-reducer","title":"PVC Aquarium Winkel Muffe Kleberfittings 20mm x Schlauchtülle 5~8mm Reduzierung","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e20mm PVC Aquarium Fittings — Reliable Elbow \u0026amp; Straight Barbed Reducer for Tight Plumbing Runs\u003c\/h2\u003e\n\u003cp\u003eWhen you're routing tubing through a crowded sump cabinet or building a custom aquarium filtration loop, a poorly fitted connector can mean leaks, lost livestock, and hours of rework. These 20mm PVC aquarium fittings are designed for hobbyists and workshop builders who need a dependable, solvent-weld socket connection on one end and a flexible barbed reducer on the other — so you can transition cleanly from rigid PVC pipe to soft tubing without adapters or tape.\u003c\/p\u003e\n\u003cp\u003eEach fitting is molded from rigid PVC and is available in two socket configurations: a 20mm inner-diameter (ID) socket that accepts standard 20mm OD pipe, and a 20mm outer-diameter (OD) slip fitting for inside-socket installations. The barbed spigot end tapers to accept soft tubing in the 5–8mm (approximately 3\/16\"–5\/16\") inner-diameter range, creating a friction-secure, hose-clamp-ready seal. Available in Blue or White to match your build aesthetic, in single-piece or 5-piece packs.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include aquarium sump return lines, freshwater and saltwater filter plumbing, DIY pond circulation systems, and hydroponics irrigation manifolds — anywhere a compact 90° elbow or inline straight connector is needed to bridge rigid pipe and flexible tubing.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e✅\u003c\/span\u003e\n\u003cstrong\u003eCompatible with:\u003c\/strong\u003e Standard 20mm PVC pipe (ID or OD fit — select your variant) · Soft tubing with 5–8mm inner diameter · Solvent-weld PVC cement · Freshwater \u0026amp; saltwater aquarium systems · Hydroponics and pond plumbing\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These 20mm PVC Aquarium Barbed Fittings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n\u003cstrong\u003eDual Socket Options\u003c\/strong\u003e\u003cbr\u003eChoose 20mm Inner Diameter (ID) for slip-over pipe connections, or 20mm Outer Diameter (OD) for inside-socket installations — both use solvent-weld cement for a permanent, leak-free bond.\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🌊\u003c\/span\u003e\n\u003cstrong\u003eBarbed Reducer Spigot\u003c\/strong\u003e\u003cbr\u003eThe tapered barbed end accepts soft tubing from 5mm to 8mm inner diameter (approx. 3\/16\" to 5\/16\"), gripping the hose securely without additional fittings. Add a hose clamp for extra retention in high-flow setups.\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n\u003cstrong\u003eElbow \u0026amp; Straight Configurations\u003c\/strong\u003e\u003cbr\u003eThe 90° elbow variant redirects flow in tight spaces — ideal for sump cabinets and corner runs. The straight variant provides an inline transition from rigid pipe to flexible tubing with minimal pressure drop.\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎨\u003c\/span\u003e\n\u003cstrong\u003eBlue or White Finish\u003c\/strong\u003e\u003cbr\u003eSelect Blue for easy visual identification in multi-line plumbing systems, or White for a clean, low-profile look that blends with standard PVC pipework.\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e💧\u003c\/span\u003e\n\u003cstrong\u003eCorrosion-Resistant PVC Construction\u003c\/strong\u003e\u003cbr\u003eRigid PVC resists chlorine, saltwater, fertilizer solutions, and common aquarium additives. No rust, no degradation — suitable for continuous submersion-adjacent environments.\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n\u003cstrong\u003eSingle or 5-Pack Quantities\u003c\/strong\u003e\u003cbr\u003eOrder a single fitting to replace a failed connector, or grab a 5-pack for new builds and spare inventory. Multi-pack pricing offers better value per fitting for larger projects.\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — PVC Aquarium Barbed Fittings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eRigid PVC (Polyvinyl Chloride)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSocket Size\u003c\/th\u003e\n\u003ctd\u003e20mm Inner Diameter (ID) or 20mm Outer Diameter (OD) — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBarbed Spigot Range\u003c\/th\u003e\n\u003ctd\u003e5–8mm inner diameter tubing (approx. 3\/16\"–5\/16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnection Type (Socket End)\u003c\/th\u003e\n\u003ctd\u003eSolvent-weld (glue socket)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnection Type (Barb End)\u003c\/th\u003e\n\u003ctd\u003eBarbed push-fit \/ hose-clamp compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitting Style\u003c\/th\u003e\n\u003ctd\u003eElbow (90°) or Straight — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBlue or White — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e1 pcs or 5 pcs — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluid Compatibility\u003c\/th\u003e\n\u003ctd\u003eFreshwater, saltwater, fertilizer solutions, non-pressurized aquarium plumbing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Recommended Pressure\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertifications\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know whether to choose the 20mm Inner Diameter or 20mm Outer Diameter variant?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe 20mm ID (Inner Diameter) variant has a socket that fits over a pipe with a 20mm outer diameter — this is the most common slip-fit connection for standard 20mm PVC pipe. The 20mm OD (Outer Diameter) variant is sized to insert into a socket or fitting that has a 20mm inner bore. Measure your existing pipe or fitting opening before ordering to select the correct match.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat tubing size fits the barbed spigot end?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe barbed spigot is designed to accept soft flexible tubing with an inner diameter of 5mm to 8mm (approximately 3\/16\" to 5\/16\"). The taper allows it to grip tubing across this range. For a more secure hold — especially in higher-flow applications — use a small hose clamp over the barb.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these fittings in a saltwater aquarium?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Rigid PVC is chemically resistant to saltwater, chlorine, and most aquarium additives. It will not corrode, rust, or degrade in typical reef or marine tank plumbing environments. Ensure the solvent-weld joint is fully cured before introducing water flow.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat adhesive should I use for the solvent-weld socket end?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eUse a standard PVC solvent cement (also called PVC glue or CPVC cement for low-pressure applications). Apply primer to both surfaces if required by your local plumbing code or if working with schedule-rated pipe. Allow the joint to cure fully — typically 15–30 minutes before handling and 24 hours before pressurizing — following the cement manufacturer's instructions.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the elbow a true 90-degree angle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes, the elbow variant provides a 90° change in flow direction. This makes it well-suited for routing tubing around corners in sump cabinets, behind tank stands, or through tight equipment spaces where a straight run is not possible.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these fittings for hydroponics or pond systems?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. PVC is widely used in hydroponics irrigation manifolds and pond circulation systems due to its resistance to fertilizer solutions, algaecides, and UV-stabilized water treatments. These fittings are suitable for low-pressure, gravity-fed, or pump-assisted systems typical of hobby-scale hydroponics and garden pond setups.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhy would I choose the 5-pack over buying individual fittings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe 5-pack offers a lower per-fitting cost and is practical when building a new filtration system, replacing multiple connectors at once, or keeping spares on hand for maintenance. If you only need to replace a single failed fitting, the 1-piece option keeps your order cost minimal.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your size, type, color, and quantity above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I know whether to choose the 20mm Inner Diameter or 20mm Outer Diameter variant?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The 20mm ID variant has a socket that fits over a pipe with a 20mm outer diameter — the most common slip-fit for standard 20mm PVC pipe. The 20mm OD variant inserts into a socket or fitting with a 20mm inner bore. Measure your existing pipe or fitting opening before ordering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What tubing size fits the barbed spigot end?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The barbed spigot accepts soft flexible tubing with an inner diameter of 5mm to 8mm (approximately 3\/16\\\" to 5\/16\\\"). Use a small hose clamp for a more secure hold in higher-flow applications.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these fittings in a saltwater aquarium?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Rigid PVC is chemically resistant to saltwater, chlorine, and most aquarium additives. 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Allow the joint to cure fully — typically 15–30 minutes before handling and 24 hours before pressurizing.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is the elbow a true 90-degree angle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the elbow variant provides a 90° change in flow direction, ideal for routing tubing around corners in sump cabinets or tight equipment spaces.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these fittings for hydroponics or pond systems?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. PVC resists fertilizer solutions, algaecides, and UV-stabilized water treatments, making these fittings suitable for hobby-scale hydroponics and garden pond setups.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Why would I choose the 5-pack over buying individual fittings?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The 5-pack offers a lower per-fitting cost and is practical for new builds, replacing multiple connectors, or keeping spares on hand. The 1-piece option is best when you only need a single replacement.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"20mm【Inner Dia】 \/ Elbow \/ Blau \u0026 1pcs","offer_id":52332464046354,"sku":"BEAR021519x1","price":3.25,"currency_code":"USD","in_stock":true},{"title":"20mm【Inner Dia】 \/ Elbow \/ Weiß \u0026 1pcs","offer_id":52332464079122,"sku":"BEAR021520x1","price":3.25,"currency_code":"USD","in_stock":true},{"title":"20mm【Outer Dia】 \/ Elbow \/ Blau \u0026 1pcs","offer_id":52332464111890,"sku":"BEAR021521x1","price":2.84,"currency_code":"USD","in_stock":true},{"title":"20mm【Outer Dia】 \/ Elbow \/ Weiß \u0026 1pcs","offer_id":52332464144658,"sku":"BEAR021522x1","price":2.84,"currency_code":"USD","in_stock":true},{"title":"20mm【Inner Dia】 \/ Straight \/ Blau \u0026 1pcs","offer_id":52332464177426,"sku":"BEAR021523x1","price":3.25,"currency_code":"USD","in_stock":true},{"title":"20mm【Inner Dia】 \/ Straight \/ Weiß \u0026 1pcs","offer_id":52332464210194,"sku":"BEAR021524x1","price":3.25,"currency_code":"USD","in_stock":true},{"title":"20mm【Outer Dia】 \/ Straight \/ Blau \u0026 1pcs","offer_id":52332464242962,"sku":"BEAR021525x1","price":2.84,"currency_code":"USD","in_stock":true},{"title":"20mm【Outer Dia】 \/ Straight \/ Weiß \u0026 1pcs","offer_id":52332464275730,"sku":"BEAR021526x1","price":2.84,"currency_code":"USD","in_stock":true},{"title":"20mm【Inner Dia】 \/ Elbow \/ Blau \u0026 5pcs","offer_id":52332464308498,"sku":"BEAR021519x5","price":12.09,"currency_code":"USD","in_stock":true},{"title":"20mm【Inner Dia】 \/ Elbow \/ Weiß \u0026 5pcs","offer_id":52332464341266,"sku":"BEAR021520x5","price":12.09,"currency_code":"USD","in_stock":true},{"title":"20mm【Outer Dia】 \/ Elbow \/ Blau \u0026 5pcs","offer_id":52332464374034,"sku":"BEAR021521x5","price":9.86,"currency_code":"USD","in_stock":true},{"title":"20mm【Outer Dia】 \/ Elbow \/ Weiß \u0026 5pcs","offer_id":52332464406802,"sku":"BEAR021522x5","price":9.86,"currency_code":"USD","in_stock":true},{"title":"20mm【Inner Dia】 \/ Straight \/ Blau \u0026 5pcs","offer_id":52332464439570,"sku":"BEAR021523x5","price":12.09,"currency_code":"USD","in_stock":true},{"title":"20mm【Inner Dia】 \/ Straight \/ Weiß \u0026 5pcs","offer_id":52332464472338,"sku":"BEAR021524x5","price":12.09,"currency_code":"USD","in_stock":true},{"title":"20mm【Outer Dia】 \/ Straight \/ Blau \u0026 5pcs","offer_id":52332464505106,"sku":"BEAR021525x5","price":9.86,"currency_code":"USD","in_stock":true},{"title":"20mm【Outer Dia】 \/ Straight \/ Weiß \u0026 5pcs","offer_id":52332464537874,"sku":"BEAR021526x5","price":9.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Bild2von4_1.jpg?v=1782436867","url":"https:\/\/homediyer.com\/products\/pvc-aquarium-elbow-straight-fitting-20mm-barbed-reducer","provider":"HomeDIYer","version":"1.0","type":"link"}