{"product_id":"pemko-411arl36-36-3-full-mortise-automatic-door-bottom-with-sponge-neoprene-mill-finish-aluminum-finish","title":"Pemko 411ARL36 36\" 3' Full Mortise Automatic Door Bottom with Sponge Neoprene Mill Finish Aluminum Finish","description":"\u003cp\u003eThe 411ARL36 full mortise automatic door bottom installs into the bottom rail of commercial doors to seal gaps between the door and floor. This drop-down seal automatically lowers when the door closes, creating an airtight barrier that prevents air infiltration and improves energy efficiency in office buildings, hotels, and institutional facilities. \u003ca href=\"\/companies\/pemko\"\u003ePemko\u003c\/a\u003e designed this 36-inch unit for 1-3\/4 inch thick doors with a mill finish aluminum housing that mortises completely into the door for a clean appearance.\u003c\/p\u003e\n\n\u003cp\u003eThe sponge neoprene seal compresses against the floor to block air leakage while remaining durable under repeated cycling. The automatic mechanism engages through door contact, requiring no electrical connections or manual operation. For facilities managing energy costs and building envelope performance, this door bottom addresses air leakage points that compromise HVAC efficiency.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAnodized Aluminum Housing, Sponge Neoprene Seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e36 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDoor Thickness\u003c\/th\u003e\n\u003ctd\u003e1-3\/4 inch (K411 end plates required for 1-3\/8 inch doors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFull Mortise with Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e5 Years Limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis automatic door bottom meets UL 1784 air leakage standards and UL 10C fire door testing requirements. The unit also complies with ANSI\/BHMA A156.22 gasketing standards and ASTM E-283 air infiltration specifications. For projects requiring \u003ca href=\"\/resources\/building-codes-standards\/fire-inspection-compliance\/ul-10c-fire-rated-doors\"\u003eUL 10C fire door assemblies\u003c\/a\u003e, this component maintains fire ratings when properly installed. Buildings following \u003ca href=\"\/resources\/building-codes-standards\/emergency-life-safety\/nfpa-101\"\u003eNFPA 101 Life Safety Code\u003c\/a\u003e egress requirements benefit from improved compartmentalization while maintaining code-compliant door operation.\u003c\/p\u003e","brand":"Pemko","offers":[{"title":"Each","offer_id":46754799255729,"sku":"411ARL36","price":71.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_9e0e139f-7e1b-430a-87e3-f3741a90ac34.webp?v=1775806344","url":"https:\/\/shop.usmadesupply.com\/products\/pemko-411arl36-36-3-full-mortise-automatic-door-bottom-with-sponge-neoprene-mill-finish-aluminum-finish","provider":"US Made Supply","version":"1.0","type":"link"}