{"product_id":"oem-goodman-23-x-20-in-vertical-drain-pan-for-wahms3743p4aca-b1756020l","title":"OEM Goodman 23 x 20 in Vertical Drain Pan for WAHMS3743P4ACA — B1756020L","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1756020L\u003c\/strong\u003e is a genuine OEM vertical condensate drain pan, \u003cstrong\u003e23 in x 20 in outside dimension\u003c\/strong\u003e, for the \u003cstrong\u003eWAHMS3743P4ACA\u003c\/strong\u003e air handler. Installed beneath the evaporator coil in vertical (up-flow\/down-flow) configurations, the pan collects condensate and channels it to the drain line. A cracked, corroded, or mismatched pan is a leading cause of ceiling stains, water damage, and float-switch shutdowns — so an exact-fit replacement matters.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B1756020L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Vertical (primary) condensate drain pan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 23 in x 20 in outside dimension (OD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Goodman \/ Amana air handlers, model WAHMS3743P4ACA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrientation:\u003c\/strong\u003e Vertical coil installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eGeneric pans rarely match the WAHMS coil footprint or drain-port location, leading to overflow, poor drainage slope, and improvised sealing. The OEM B1756020L is molded to the exact 23 x 20 footprint with the correct drain connection, ensuring full coil coverage and proper run-off.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty: Moderate.\u003c\/strong\u003e Requires pulling the coil to remove the old pan, then re-seating and re-connecting the condensate line — typically 45–60 minutes. Cut power, confirm a slight slope toward the drain, and verify the float switch operates before returning to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Direct Replacement","offer_id":63032426987891,"sku":"B1756020L-GEN","price":37.14,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048148189555,"sku":"B1756020L","price":48.28,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-drain-pan-metal-B1756020L_c31ed406-4d44-4a05-a10b-f99b17a76b8a.jpg?v=1782945454","url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-23-x-20-in-vertical-drain-pan-for-wahms3743p4aca-b1756020l","provider":"National HVAC Parts","version":"1.0","type":"link"}