{"product_id":"chief-3-5-adjustable-extension-column-cms-0305-black-aluminum-500-lb","title":"Chief 3-5' Adjustable Extension Column CMS-0305 Black Aluminum 500 lb","description":"\u003cstyle\u003e body { font-family: Arial, sans-serif; color: #333; line-height: 1.6; padding: 20px; } h1 { color: #1e90ff; text-align: center; font-size: 30px; margin-bottom: 20px; } h2 { color: #00bfff; font-size: 24px; border-bottom: 2px solid #1e90ff; padding-bottom: 5px; margin-top: 30px; } p { font-size: 16px; margin: 10px 0; } table { width: 100%; border-collapse: collapse; margin: 20px 0; background-color: #fff; box-shadow: 0 4px 8px rgba(0,0,0,0.1); } th, td { padding: 12px; text-align: left; border: 1px solid #ddd; } th { background-color: #1e90ff; color: white; font-weight: bold; } tr:nth-child(even) { background-color: #f9f9f9; }.highlight { color: #1e90ff; font-weight: bold; }.section { background-color: #f0f8ff; padding: 20px; border-radius: 10px; margin: 20px 0; } ul, ol { margin-left: 20px; } li { margin-bottom: 10px; }.compatibility-note { background-color: #e6fffa; border: 1px solid #38b2ac; padding: 15px; border-radius: 8px; color: #2c7a7b; font-weight: bold; }\n\u003c\/style\u003e\n\u003ch1\u003eChief 3-5' Adjustable Extension Column CMS-0305 Black Aluminum 500 lb\u003c\/h1\u003e\n\u003cp\u003eThis is a Chief Speed-Connect adjustable extension column designed for AV mounting installations. The Chief 3-5' Adjustable Extension Column - Black (MPN: CMS-0305, UPC: 841872092799) features aluminum construction for secure, adjustable height support up to 500 lb. Manufactured by Chief Mfg. under Legrand Group, it supports 1 1\/2\" NPT accessories and includes flow-through cable management.\u003c\/p\u003e\n\u003cdiv class=\"compatibility-note\"\u003e COMPATIBILITY: Designed for 1 1\/2\" NPT pipe thread accessories. Integrates with Chief Speed-Connect mounts and compatible AV systems.\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003eKey Features of Chief CMS-0305 Extension Column\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan class=\"highlight\"\u003eAdjustable Length\u003c\/span\u003e – Extends from 36\" to 60\" (3-5 ft) with notched design for changes without full disassembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"highlight\"\u003eHigh Load Capacity\u003c\/span\u003e – Supports up to 500 lb for heavy-duty AV installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"highlight\"\u003eAluminum Construction\u003c\/span\u003e – Lightweight yet durable for easier handling and installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"highlight\"\u003eCable Management\u003c\/span\u003e – Flow-through with integrated port on one end for clean cable routing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"highlight\"\u003eSpeed-Connect System\u003c\/span\u003e – Part of CMS series for quick, secure mounting setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"highlight\"\u003eSet Screw Included\u003c\/span\u003e – Ensures stability once adjusted.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003eComprehensive Technical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChief\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLegrand Group \/ Chief Mfg.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCMS-0305\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCMS-0305 \/ CMS0305\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e841872092799\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMounting Extension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCMS-0305 Speed Connect Adjustable Extension Column\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Load Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Adjustable Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight Adjustable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 1\/2\" NPT Accessory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.7 lb \/ 7.70 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (H x W x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.8\" x 2.8\" x 42.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCMS-0305 Speed Connect Adjustable Extension Column, Set Screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003eInstallation \u0026amp; Maintenance for Chief Extension Column\u003c\/h2\u003e\n\u003cp\u003eDesigned to save installation time with notched adjustments and aluminum build for easier setup.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eThread into 1 1\/2\" NPT mount base.\u003c\/li\u003e\n\u003cli\u003eAdjust length using notches without disassembly.\u003c\/li\u003e\n\u003cli\u003eSecure with included set screw.\u003c\/li\u003e\n\u003cli\u003eRoute cables through integrated port.\u003c\/li\u003e\n\u003cli\u003eVerify load stability up to 500 lb.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003eWhy Choose Chief CMS-0305?\u003c\/h2\u003e\n\u003cp\u003eChief provides reliable, adjustable support for professional AV installations with proven aluminum durability and cable-friendly design.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eEnhance your AV mount setup—Order Chief CMS-0305 today!\u003c\/p\u003e\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Chief\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Mounting Extension\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMPN:\u003c\/strong\u003e CMS-0305\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e United States\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eItem Weight:\u003c\/strong\u003e 7.7 lb\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUPC:\u003c\/strong\u003e 841872092799\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Chief","offers":[{"title":"Default Title","offer_id":43336699609206,"sku":"CMS0305","price":184.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/4277\/6950\/files\/10_28afebda-24e5-4e4a-b09e-284a578193bc.jpg?v=1777040676","url":"https:\/\/sellizoe.com\/products\/chief-3-5-adjustable-extension-column-cms-0305-black-aluminum-500-lb","provider":"Sellizo","version":"1.0","type":"link"}