{"product_id":"pemko-411arl28-full-mortise-automatic-door-bottom-28-in","title":"Pemko 411ARL28 Full Mortise Automatic Door Bottom 28 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PEMKO 411ARL28 is a full mortise automatic door bottom designed to seal the gap between a door and the threshold when the door is closed. The unit retracts automatically when the door opens and drops to form a seal when the door closes, using a sponge neoprene gasket to block drafts, dust, moisture, sound, and light. Finished in mill finish aluminum, this door bottom installs into a routed mortise channel in the bottom edge of the door. It is suited for commercial and residential applications where consistent threshold sealing is required. Installation is typically performed by a licensed door hardware technician or general contractor.\u003c\/p\u003e\n\u003cp\u003eThe 411ARL28 is sized for doors with a 28-inch (2 feet 4 inches) active width. The automatic drop mechanism activates through contact with the door stop or frame as the door closes, making it appropriate for single-door commercial entry applications, office suites, hotel corridors, and similar settings where perimeter sealing is a code or performance requirement. The sponge neoprene seal provides a compliant, compressible contact surface that accommodates minor threshold irregularities.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFull mortise mounting style — recessed into the door bottom edge for a flush, low-profile appearance\u003c\/li\u003e\n  \u003cli\u003eAutomatic drop action — seal deploys on door close and retracts on door open without manual adjustment\u003c\/li\u003e\n  \u003cli\u003eSponge neoprene gasket — compressible seal blocks drafts, dust, moisture, and sound\u003c\/li\u003e\n  \u003cli\u003eMill finish aluminum construction — corrosion-resistant and suitable for standard interior and light commercial exterior applications\u003c\/li\u003e\n  \u003cli\u003e28-inch active length — designed for doors with a 28-inch clear width\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style mortise automatic door bottom replacement or new-installation component for standard commercial and residential doors requiring a 28-inch sweep seal in a full mortise configuration.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires routing a precise mortise channel into the bottom edge of the door to the manufacturer-specified depth and width before fitting the unit. A licensed door hardware installer or finish carpenter should complete this work. Verify door thickness and bottom rail dimensions are sufficient to accept a full mortise unit before ordering. Confirm the threshold profile is compatible with the neoprene seal drop height prior to installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActive Door Width\u003c\/strong\u003e: 28 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 29.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.27 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeal Material\u003c\/strong\u003e: Sponge Neoprene\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Mill Finish Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Type\u003c\/strong\u003e: Full Mortise\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSold As\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: PEMKO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 411ARL28\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PEMKO","offers":[{"title":"Default Title","offer_id":51559814824242,"sku":"411ARL28","price":74.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/35940e1326265d082d5c76dc2f5eb202_06fb5d93-9472-474a-ad0a-8daf9ed839eb.jpg?v=1786441817","url":"https:\/\/voomisupply.com\/products\/pemko-411arl28-full-mortise-automatic-door-bottom-28-in","provider":"Voomi Supply","version":"1.0","type":"link"}