{"product_id":"through-wall-letterbox-locking-weatherproof-galvanised-steel-sm","title":"SM Through Wall Letterbox Locking Weatherproof Galvanised Steel","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSM Through Wall Letterbox\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a sleek, adjustable, and secure letterbox designed for classic through the wall installation. Made from galvanised steel with a thermally powder-coated finish, this weatherproof letterbox offers enhanced rust resistance and a smart, durable appearance for everyday external use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis through wall post box is adjustable from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e230mm to 380mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, allowing it to fit through most walls. To receive \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eA4 post\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the letterbox must be extended to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e330mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Please note that this model is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003enot suitable for single brick walls\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA built-in window indicator on the inside gives a clear visual indication when post has arrived, while the removable rear door provides easy access for mail collection. The secure cylinder lock, supplied by \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eEuro-Locks Lowe \u0026amp; Fletcher\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, includes \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2 keys\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for reliable mail protection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAvailable in a choice of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMatt Black, White, Copper, Silver RAL 9006, and Dark Grey\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the SM through wall letterbox is a practical option for homes, offices, flats, and commercial properties looking for a clean and secure mail solution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf you are looking for a through the wall letter box, with collection box you may be interested in the Rolle. View our complete range of through the wall letterboxes here.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSM through wall letterbox for classic wall installation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdjustable depth from 230mm to 380mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for A4 post when extended to 330mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNot suitable for single brick walls\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMade from galvanised steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThermally powder coated for enhanced rust resistance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeatherproof design for external use\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSecure cylinder lock from Euro-Locks Lowe \u0026amp; Fletcher\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupplied with 2 keys\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInside window indicator shows when post has arrived\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRemovable rear door for easy mail access\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCapacity from 7.9L to 13.2L, depending on wall depth\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvailable in Matt Black, White, Copper, Silver RAL 9006, and Dark Grey\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2-year warranty included\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eProduct Specifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eProduct Name: SM Through Wall Letterbox Locking Weatherproof Galvanised Steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProduct Type: Through Wall Letterbox\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaterial: Galvanised Steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFinish: Thermally Powder Coated\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstallation: Through Wall\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeight: 110mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWidth: 300mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdjustable Depth: 230mm – 380mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFaceplate Size: 110mm x 295mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLetter Slot Size: 38mm x 262mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaximum Mail Thickness: Suitable for mail up to 15mm thick\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable Correspondence: A4 if extended to 330mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCapacity: 7.9L – 13.2L, depending on wall depth\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: 2.91kg\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eColours: Matt Black, White, Copper, Silver RAL 9006, Dark Grey\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLock: Secure cylinder lock, Euro-Locks Lowe \u0026amp; Fletcher\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eKeys Supplied: 2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWarranty: 2 years\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImportant Installation Note: Not suitable for single brick walls\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eView our compl\u003cimg\u003eete range of \u003ca href=\"https:\/\/www.letterbox4you.co.uk\/product-category\/post-boxes-for-house\/through-the-wall-letterbox\/\"\u003ethrough the wall letterboxes h\u003c\/a\u003e\u003c\/p\u003e","brand":"Letterbox Supermarket","offers":[{"title":"Black","offer_id":57298632343925,"sku":"DATHR401BLKMTT","price":85.99,"currency_code":"GBP","in_stock":true},{"title":"Dark Grey","offer_id":57298632376693,"sku":"DATHR401DGR","price":85.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2271\/7977\/files\/Through-the-Wall-Letterbox-SM-in-Matt-Black-Front.webp?v=1781672915","url":"https:\/\/letterboxsupermarket.com\/products\/through-wall-letterbox-locking-weatherproof-galvanised-steel-sm","provider":"Letterbox Supermarket","version":"1.0","type":"link"}