{"product_id":"sylvania-zinsco-mlb20-20-40-panel-cover-door-only-120-240v-225-amp-29-1-4-x-14-3-8-copy","title":"GTE\/Sylvania MLB20 (30-40) 40 Space Load Center Cover\/Door Only 14\" X 36\"","description":"\u003cp\u003eGTE\/Sylvania MLB20 40-space load center cover and door assembly. Designed for electrical panel protection and access control in residential and light commercial applications. Dimensions: 14\" W x 36\" H. This replacement door fits standard MLB20 enclosures and features a durable construction suitable for indoor installations. Essential component for maintaining proper panel security and compliance with electrical codes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGTE\/Sylvania\u003c\/li\u003e\n\u003cli\u003eMLB20(30-40)\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eLoad Center Cover\/Door Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e40 Space\u003c\/li\u003e\n\u003cli\u003e14\" W X 36\" T\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zinsco \/ GTE Sylvania","offers":[{"title":"Used","offer_id":48253192667394,"sku":"08042607J","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0142\/4909\/9322\/files\/PhotoAug042026_105647AM.jpg?v=1785855862","url":"https:\/\/www.sselectricalsupply.com\/products\/sylvania-zinsco-mlb20-20-40-panel-cover-door-only-120-240v-225-amp-29-1-4-x-14-3-8-copy","provider":"S\u0026S Electrical Supply","version":"1.0","type":"link"}