{"product_id":"pemko-434apkl36-36-3-full-mortise-automatic-door-bottom-with-pemkoprene-mill-finish-aluminum-finish","title":"Pemko 434APKL36 36\" 3' Full Mortise Automatic Door Bottom with PemkoPrene Mill Finish Aluminum Finish","description":"\u003cp\u003eThis full mortise automatic door bottom creates a strong seal under doors to prevent air, light, sound, fire, smoke, dust, and moisture infiltration. The 434APKL36 mounts into the door bottom and features a low-force actuating mechanism that drops down a PemkoPrene seal bar when the door closes. \u003ca href=\"\/companies\/pemko\"\u003ePemko\u003c\/a\u003e designed this 36-inch unit for high-end wood and metal doors where weatherization and code compliance matter.\u003c\/p\u003e\n\n\u003cp\u003eThe mill finish aluminum housing withstands heavy use while the proprietary PemkoPrene seal material maintains flexibility across temperature ranges. This door bottom can be field-trimmed up to 2 inches and installs reversibly on either hand. The automatic operation requires no electrical connections and works reliably for years with minimal maintenance.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAnodized Aluminum with PemkoPrene Seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eMill Finish Aluminum\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\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFull Mortise\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 door bottom meets UL 10C positive pressure fire testing requirements and UL 1784 air leakage standards. It also complies with ANSI\/BHMA A156.22 door gasketing standards, ASTM E283 air infiltration testing, and ASTM E90 sound transmission testing. The unit carries GREENGUARD Gold certification for low chemical emissions.\u003c\/p\u003e\n\n\u003cp\u003eFire-rated door assemblies require proper gasketing to maintain their \u003ca href=\"\/resources\/building-codes-standards\/fire-inspection-compliance\/ul-10c-fire-rated-doors\"\u003eUL 10C fire ratings\u003c\/a\u003e during annual inspections. For comprehensive egress planning that includes weatherization components, reference \u003ca href=\"\/resources\/building-codes-standards\/emergency-life-safety\/nfpa-101\"\u003eNFPA 101 Life Safety Code\u003c\/a\u003e requirements for your occupancy type.\u003c\/p\u003e","brand":"Pemko","offers":[{"title":"Each","offer_id":46754781757617,"sku":"434APKL36","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_bc8e2ecd-7a43-49df-9641-f456892bc633.webp?v=1775806300","url":"https:\/\/shop.usmadesupply.com\/products\/pemko-434apkl36-36-3-full-mortise-automatic-door-bottom-with-pemkoprene-mill-finish-aluminum-finish","provider":"US Made Supply","version":"1.0","type":"link"}