{"product_id":"8pcs-140mm-to-110mm-pvc-plumbing-fittings-pipe-aquarium-fish-tank-pond","title":"8PCS 140mm to 110mm PVC  Plumbing Fittings Pipe Aquarium Fish Tank Pond","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003e140mm to 110mm PVC Reducer Fittings — Reliable Flow Control for Aquariums, Fish Tanks \u0026amp; Ponds\u003c\/h2\u003e\n    \u003cp\u003eManaging water flow between mismatched pipe sizes is one of the most frustrating challenges for aquarium builders, pond installers, and DIY plumbing enthusiasts. Whether you're upgrading a sump system, building a koi pond, or routing drainage lines, these 140mm to 110mm PVC reducer fittings give you a clean, leak-resistant transition without custom fabrication.\u003c\/p\u003e\n    \u003cp\u003eThis listing includes 8 pieces of PVC reducer couplings, each designed to connect 140mm (approximately 5.5 in) outer-diameter pipe down to 110mm (approximately 4.3 in) pipe. The fittings are constructed from rigid PVC, offering a smooth interior bore for unobstructed flow. Wall thickness is typically 3–5mm depending on the variant selected.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include aquarium sump overflow plumbing, koi pond filtration pipe runs, rainwater harvesting downpipe reducers, and irrigation system branch transitions. The slip-fit socket design makes these fittings compatible with standard PVC solvent cement for a permanent, watertight bond in both wet and dry installations.\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\u003eCompatibility:\u003c\/strong\u003e Fits standard 140mm OD and 110mm OD PVC pipe. Compatible with DIN, AS\/NZS, and similar metric PVC pipe standards. Use with PVC solvent cement for permanent joints.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-features\"\u003e\n    \u003ch2\u003e✅ Key Features of These 140mm to 110mm PVC Reducer Fittings\u003c\/h2\u003e\n    \u003cul class=\"hdiy-list\"\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cstrong\u003e8-Piece Value Pack\u003c\/strong\u003e — One order covers multiple connection points in your plumbing run, reducing the need for repeat purchases on larger builds.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003ePrecision Reducer Design\u003c\/strong\u003e — Steps down cleanly from 140mm to 110mm pipe, maintaining consistent bore alignment to minimize turbulence and flow restriction.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e💧\u003c\/span\u003e\u003cstrong\u003eCorrosion-Resistant PVC Construction\u003c\/strong\u003e — Rigid PVC resists rust, scale, and chemical degradation, making these fittings suitable for freshwater, saltwater, and treated water systems.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🐟\u003c\/span\u003e\u003cstrong\u003eAquarium \u0026amp; Pond Safe\u003c\/strong\u003e — Non-toxic PVC material is safe for use in fish tanks, koi ponds, and aquatic life environments when fully cured after solvent cementing.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛠️\u003c\/span\u003e\u003cstrong\u003eSlip-Fit Socket Connection\u003c\/strong\u003e — Standard slip-fit ends accept PVC solvent cement for a permanent, leak-proof bond compatible with most DIY and professional plumbing workflows.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eConsistent Dimensions\u003c\/strong\u003e — Each fitting is manufactured to consistent tolerances so all 8 pieces fit uniformly, reducing installation time and rework on multi-point plumbing layouts.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ch2\u003e📐 Technical Specifications — PVC Reducer 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\u003eFitting Type\u003c\/th\u003e\n\u003ctd\u003eReducer Coupling (Slip-Fit Socket)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eInlet Size\u003c\/th\u003e\n\u003ctd\u003e140mm (~5.5 in) OD\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eOutlet Size\u003c\/th\u003e\n\u003ctd\u003e110mm (~4.3 in) OD\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWall Thickness\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eOverall Length\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eColor\/Finish\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eConnection Method\u003c\/th\u003e\n\u003ctd\u003ePVC Solvent Cement (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eQuantity per Pack\u003c\/th\u003e\n\u003ctd\u003e8 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eAquarium, Fish Tank, Pond, Drainage, Irrigation\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePressure Rating\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTemperature Range\u003c\/th\u003e\n\u003ctd\u003eTypically 0°C to 60°C (32°F to 140°F)\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\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat pipe sizes do these fittings connect?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThese reducer fittings are designed to connect 140mm outer-diameter pipe to 110mm outer-diameter pipe. Both ends use a slip-fit socket design intended for use with PVC solvent cement. Always verify your pipe's actual OD before ordering, as nominal pipe sizes can vary by standard (DIN, AS\/NZS, etc.).\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these fittings safe for use in aquariums and fish tanks?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The fittings are made from rigid PVC, which is non-toxic and widely used in aquatic plumbing. After solvent cementing, allow the joint to fully cure per the cement manufacturer's instructions (typically 24–48 hours) before introducing water or fish to ensure no residual fumes remain.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan these be used in saltwater or marine pond systems?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. PVC is inherently corrosion-resistant and does not react with saltwater, chlorinated water, or most common pond treatments. These fittings are suitable for both freshwater and saltwater aquarium plumbing, as well as outdoor koi ponds and water features.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat adhesive or cement should I use with these fittings?\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 cold-water applications). Apply primer first if required by your local plumbing code. Solvent cement is not included with this listing. Follow the cement manufacturer's cure time before pressurizing the system.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow strong is the connection once cemented?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eA properly solvent-cemented PVC joint is typically stronger than the pipe itself. The chemical welding process fuses the fitting and pipe into a single continuous piece. For gravity-fed aquarium and pond systems, a cemented PVC reducer fitting provides a permanent, leak-proof connection under normal operating conditions.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre all 8 pieces identical in this pack?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes, all 8 fittings in the pack are the same 140mm-to-110mm reducer coupling. This makes the pack ideal for installations requiring multiple identical transition points, such as multi-tank aquarium systems, pond manifolds, or drainage arrays.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right fitting if I'm unsure about my pipe standard?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure the actual outer diameter of your existing pipe with calipers. If your pipe measures approximately 140mm OD on the larger end and 110mm OD on the smaller end, these fittings are compatible. If you're unsure, contact us to confirm compatibility before ordering.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your size 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\": \"What pipe sizes do these fittings connect?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These reducer fittings connect 140mm outer-diameter pipe to 110mm outer-diameter pipe using a slip-fit socket design with PVC solvent cement.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these fittings safe for use in aquariums and fish tanks?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The fittings are made from rigid PVC, which is non-toxic and widely used in aquatic plumbing. Allow solvent cement to fully cure before introducing water or fish.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these be used in saltwater or marine pond systems?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. PVC is corrosion-resistant and suitable for both freshwater and saltwater aquarium plumbing, as well as outdoor koi ponds and water features.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What adhesive or cement should I use with these fittings?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Use a standard PVC solvent cement. Apply primer if required by local code. Solvent cement is not included. Follow cure time instructions before pressurizing.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How strong is the connection once cemented?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A properly solvent-cemented PVC joint is typically stronger than the pipe itself, creating a permanent, leak-proof connection under normal operating conditions.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are all 8 pieces identical in this pack?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, all 8 fittings are the same 140mm-to-110mm reducer coupling, ideal for multi-point installations.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right fitting if I'm unsure about my pipe standard?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure the actual outer diameter of your pipe with calipers. If it measures approximately 140mm OD and 110mm OD, these fittings are compatible. Contact us to confirm if unsure.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"Default Title","offer_id":52332392251666,"sku":"SSZXYDZ20260507x1","price":416.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/8PCS140mmto110mmPVCPlumbingFittingsPipeAquariumFishTankPond-Picture1of1_1.jpg?v=1782430817","url":"https:\/\/homediyer.com\/products\/8pcs-140mm-to-110mm-pvc-plumbing-fittings-pipe-aquarium-fish-tank-pond","provider":"HomeDIYer","version":"1.0","type":"link"}