{"product_id":"304-stainless-steel-compression-reducing-connector","title":"304 Stainless Steel Compression Reducing Connector | A2 Push-Fit Tube Reducer","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003c!-- ① OVERVIEW --\u003e\n\u003ch2\u003e304 Stainless Steel Compression Reducing Connector — Reliable Tube Reduction for Plumbing \u0026amp; Pneumatic Lines\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003cp\u003eWhen two tubes of different diameters need to meet cleanly — whether you're rerouting a water supply line, adapting a pneumatic circuit, or tidying up a workshop fluid system — a mismatched connection is a leak waiting to happen. These A2 304 stainless steel compression reducing connectors give DIYers, plumbers, and workshop builders a straightforward, tool-minimal solution that holds tight without soldering or adhesives.\u003c\/p\u003e\n\u003cp\u003eEach connector is machined from A2 304 stainless steel and uses a standard compression fitting design: a body, a compression nut, and an olive (ferrule) that bites onto the tube OD when tightened. Available in ten reducing sizes ranging from Φ6mm–Φ4mm (≈1\/4\\u201d–5\/32\\u201d) up to Φ16mm–Φ14mm (≈5\/8\\u201d–9\/16\\u201d), covering the most common metric tube reduction steps. Sold individually; select your size and quantity above.\u003c\/p\u003e\n\u003cp\u003eTypical applications include reducing compression fittings for copper water pipe repairs, metric tube reducers for pneumatic air lines, and stainless steel push-fit connectors for under-sink plumbing upgrades — anywhere a clean, corrosion-resistant step-down between two tube sizes is needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ② COMPATIBILITY BAR --\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔗\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for metric OD tubing — copper, brass, nylon, and PE tube. Size format is Φ[large OD]mm–Φ[small OD]mm. Always measure tube \u003cem\u003eouter diameter\u003c\/em\u003e before selecting a size.\u003c\/div\u003e\n\u003c!-- ③ KEY FEATURES --\u003e\n\u003ch2\u003e✅ Key Features of These Stainless Steel Compression Reducing Connectors\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eA2 304 Stainless Steel Construction\u003c\/strong\u003e — Resists rust, oxidation, and mild corrosion, making these reducing compression fittings dependable in damp, outdoor, and light-industrial environments.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eTen Reducing Size Options\u003c\/strong\u003e — Covers Φ6–Φ16mm OD tube combinations, addressing the most common metric tube reducer sizes used in plumbing and pneumatic systems.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWrench-Only Installation\u003c\/strong\u003e — Standard compression fitting mechanism requires no soldering, gluing, or specialist crimping tools — a practical choice for DIY plumbing repairs and workshop builds.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e💧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eLeak-Resistant Olive Seal\u003c\/strong\u003e — The compression olive deforms around the tube OD to create a mechanical seal that holds against water pressure and pneumatic air pressure in typical household and workshop applications.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eCompact Reducing Body\u003c\/strong\u003e — Low-profile connector body keeps the fitting footprint small, useful when routing tubes through tight spaces in cabinetry, wall chases, or equipment enclosures.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏠\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eBroad Application Range\u003c\/strong\u003e — Suitable for cold and hot water supply lines, compressed air circuits, and fluid transfer systems — a versatile stainless steel tube reducer for home and workshop use.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- ④ TECHNICAL SPECIFICATIONS --\u003e\n\u003ch2\u003e📐 Technical Specifications — Stainless Steel Compression Reducing Connectors\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e Specifications below are based on product information and standard A2 304 compression fitting characteristics. Confirm pressure rating and tube compatibility for your specific application before installation.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eA2 304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitting Type\u003c\/th\u003e\n\u003ctd\u003eCompression Reducing Connector (two-piece: body + nut + olive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Sizes (OD × OD)\u003c\/th\u003e\n\u003ctd\u003eΦ6–Φ4mm \/ Φ8–Φ6mm \/ Φ10–Φ6mm \/ Φ10–Φ8mm \/ Φ12–Φ6mm \/ Φ12–Φ8mm \/ Φ12–Φ10mm \/ Φ14–Φ12mm \/ Φ16–Φ12mm \/ Φ16–Φ14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Reference (approx. inch)\u003c\/th\u003e\n\u003ctd\u003e4mm ≈ 5\/32\\u201d  |  6mm ≈ 1\/4\\u201d  |  8mm ≈ 5\/16\\u201d  |  10mm ≈ 3\/8\\u201d  |  12mm ≈ 1\/2\\u201d  |  14mm ≈ 9\/16\\u201d  |  16mm ≈ 5\/8\\u201d\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTube Compatibility\u003c\/th\u003e\n\u003ctd\u003eMetric OD copper, brass, nylon, PE tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWorking Pressure (typical)\u003c\/th\u003e\n\u003ctd\u003eUp to ~150 PSI (≈10 bar) — see variant options; confirm for your application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature Range (typical)\u003c\/th\u003e\n\u003ctd\u003eGenerally suitable for -20°C to +120°C (-4°F to 248°F) — contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural brushed stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive \/ Installation\u003c\/th\u003e\n\u003ctd\u003eWrench-tightened compression nut — no soldering required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eIndividual piece (1 pc per order); select quantity above\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- ⑤ FAQ --\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right size compression reducing connector?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the outer diameter (OD) of both tubes you need to join. The size format is Φ[larger OD]mm–Φ[smaller OD]mm. For example, Φ10mm–Φ6mm connects a 10mm (≈3\/8\\u201d) tube to a 6mm (≈1\/4\\u201d) tube. Always measure the tube OD with calipers — do not rely on nominal pipe size, which can differ from actual OD.\u003c\/p\u003e\n\u003cp\u003eQuick inch reference: 4mm ≈ 5\/32\\u201d | 6mm ≈ 1\/4\\u201d | 8mm ≈ 5\/16\\u201d | 10mm ≈ 3\/8\\u201d | 12mm ≈ 1\/2\\u201d | 14mm ≈ 9\/16\\u201d | 16mm ≈ 5\/8\\u201d\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat pressure can these stainless steel compression fittings handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA2 304 stainless steel compression fittings generally handle working pressures up to approximately 150 PSI (≈10 bar) for water and pneumatic applications. The exact rating depends on tube wall thickness and the specific size selected. Contact us to confirm the rating for your application before installation in high-pressure systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these fittings suitable for outdoor or corrosive environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. A2 304 stainless steel offers strong resistance to rust, oxidation, and mild corrosion, making these connectors suitable for outdoor plumbing, damp workshop settings, and light-industrial environments. For highly saline or chemical-heavy environments, A4 316 stainless steel is typically recommended instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat tube types and standards are compatible with these reducing connectors?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese fittings are designed for metric OD tubing and are generally compatible with copper, brass, nylon, and polyethylene (PE) tubes of the corresponding outer diameter. They follow standard compression fitting geometry used in European and metric plumbing systems. Always verify the tube OD matches the fitting size before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need special tools to install these compression fittings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eIn most cases, only a standard wrench or spanner is needed. Compression fittings work by tightening a nut that compresses an olive (ferrule) onto the tube — no soldering, gluing, or crimping tools required. This makes them a practical choice for DIY plumbing repairs and pneumatic line work.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I reuse these fittings after disassembly?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eCompression fittings can generally be loosened and repositioned during initial installation. However, once the olive has been fully compressed onto the tube, reuse on a different tube is not recommended — the olive deforms to create the seal and will not form a reliable seal on a new tube. A replacement olive is typically required for a new connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between a compression fitting and a push-fit (push-to-connect) fitting?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA compression fitting uses a nut and olive that are mechanically tightened with a wrench to grip the tube — it is more permanent and generally rated for higher pressures. A push-fit (push-to-connect) fitting uses an internal collet and O-ring that grip the tube when inserted, allowing tool-free installation and easier disconnection. These connectors are compression-type fittings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know if my existing plumbing uses metric or imperial tube sizing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the tube OD with calipers. If the measurement is a round metric number (6mm, 8mm, 10mm, 12mm, etc.) your system is likely metric. If it falls on a fractional inch value (1\/4\\u201d, 3\/8\\u201d, 1\/2\\u201d, etc.) it may be imperial. Note that some nominal imperial sizes have ODs that are close to — but not identical to — metric sizes, so always verify with a direct measurement before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c!-- ⑥ CTA BAR --\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"Φ6mm-Φ4mm \/ 1","offer_id":52336794665234,"sku":"GYLZWGLBZSJ018390x1","price":4.07,"currency_code":"USD","in_stock":true},{"title":"Φ8mm-Φ6mm \/ 1","offer_id":52336794698002,"sku":"GYLZWGLBZSJ018391x1","price":4.15,"currency_code":"USD","in_stock":true},{"title":"Φ10mm-Φ6mm \/ 1","offer_id":52336794730770,"sku":"GYLZWGLBZSJ018392x1","price":4.75,"currency_code":"USD","in_stock":true},{"title":"Φ10mm-Φ8mm \/ 1","offer_id":52336794763538,"sku":"GYLZWGLBZSJ018393x1","price":5.1,"currency_code":"USD","in_stock":true},{"title":"Φ12mm-Φ6mm \/ 1","offer_id":52336794796306,"sku":"GYLZWGLBZSJ018394x1","price":5.78,"currency_code":"USD","in_stock":true},{"title":"Φ12mm-Φ8mm \/ 1","offer_id":52336794829074,"sku":"GYLZWGLBZSJ018395x1","price":6.92,"currency_code":"USD","in_stock":true},{"title":"Φ12mm-Φ10mm \/ 1","offer_id":52336794861842,"sku":"GYLZWGLBZSJ018396x1","price":7.41,"currency_code":"USD","in_stock":true},{"title":"Φ14mm-Φ12mm \/ 1","offer_id":52336794894610,"sku":"GYLZWGLBZSJ018397x1","price":8.23,"currency_code":"USD","in_stock":true},{"title":"Φ16mm-Φ12mm \/ 1","offer_id":52336794927378,"sku":"GYLZWGLBZSJ018398x1","price":9.37,"currency_code":"USD","in_stock":true},{"title":"Φ16mm-Φ14mm \/ 1","offer_id":52336794960146,"sku":"GYLZWGLBZSJ018399x1","price":9.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/7a96c35e-8597-4b7d-8348-355f7adbed0f.jpg?v=1781161762","url":"https:\/\/homediyer.com\/de\/products\/304-stainless-steel-compression-reducing-connector","provider":"HomeDIYer","version":"1.0","type":"link"}