{"product_id":"crl-chrome-plated-brass-no-draft-speak-thru-b00ql51nyk","title":"CRL Chrome Plated Brass 5-5\/16\" No-Draft Speak-Thru - 549","description":"\u003ch1\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h1\u003e \u003ctable style=\"width: 98.4071%;\" height=\"5\" width=\"282\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd style=\"text-align: center; width: 49.6405%;\"\u003e\u003cstrong\u003e Diameter\u003c\/strong\u003e\u003c\/td\u003e \u003ctd style=\"text-align: center; width: 49.6405%;\"\u003e5-5\/16 in. (134.9 mm)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"text-align: center; width: 49.6405%;\"\u003e\u003cstrong\u003eFinish \/ Color\u003c\/strong\u003e\u003c\/td\u003e \u003ctd style=\"text-align: center; width: 49.6405%;\"\u003ePolished Chrome\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"text-align: center; width: 49.6405%;\"\u003e\u003cstrong\u003eGlazing Thickness\u003c\/strong\u003e\u003c\/td\u003e \u003ctd style=\"text-align: center; width: 49.6405%;\"\u003e1\/4 in. to 1\/2 in. (6 mm to 12 mm)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"text-align: center; width: 49.6405%;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e \u003ctd style=\"text-align: center; width: 49.6405%;\"\u003eAluminum\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"text-align: center; width: 49.6405%;\"\u003e\u003cstrong\u003eRequired Hole Size\u003c\/strong\u003e\u003c\/td\u003e \u003ctd style=\"text-align: center; width: 49.6405%;\"\u003e3-1\/2 in. (88.9 mm)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003cp\u003e\u003cspan\u003eOur \u003cb\u003eCRL No-Draft Speak-Thrus\u003c\/b\u003e are designed to allow audible transmission of voice requests at ticket windows, box offices, and more. They prevent tampering from the outside, and stop drafts to the interior. The 549 Series is made of brass, the 834 Series is made of aluminum. Each unit is individually boxed with gaskets and mounting screws for installation on glass from 1\/4\" (6 mm) to 1\/2\" (12 mm) thick. For glass up to 3-3\/4\" (95 mm) thick you can use the optional Cat. No. 8324 4\" (102 mm) screws. No-Draft Speak-Thrus require a minimum hole diameter of 2-1\/4\" (57 mm), and will cover holes up to 4-1\/4\" (108 mm). Recommended hole diameter is 3-1\/2\" (89 mm).\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSPECIFICATIONS:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eMaterial:\u003c\/b\u003e Brass\u003cbr\u003e\u003cb\u003eFinishes:\u003c\/b\u003e Chrome Plating\u003cbr\u003e\u003cb\u003eInstructions Included\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eGlass Fabrication Required:\u003c\/b\u003e Recommended 3-1\/2\" (89 mm) Diameter Hole\u003c\/span\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eEasy-to-Install\u003c\/li\u003e \u003cli\u003eEliminates Drafts\u003c\/li\u003e \u003cli\u003eTheft-Proof Locking Device\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eGuidelines and Templates:\u003c\/p\u003e \u003cp\u003eNo \u003c\/p\u003e","brand":"CRL","offers":[{"title":"Default Title","offer_id":54869539750227,"sku":"549","price":26.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1076\/9324\/4755\/files\/D-549_13110.webp?v=1788646105","url":"https:\/\/progradewarehouse.com\/products\/crl-chrome-plated-brass-no-draft-speak-thru-b00ql51nyk","provider":"PRO GRADE WAREHOUSE","version":"1.0","type":"link"}