{"product_id":"hvac-filter-21x23x1","title":"HVAC FILTER 21X23X1","description":"High-efficiency HVAC filter designed to fit standard 21x23x1 inch return air ducts. Captures dust, pollen, pet dander, and airborne particles to maintain clean indoor air and protect your heating and cooling system. Easy to install and replace. Check your system specifications before ordering to ensure proper fit. Regular replacement extends equipment life and improves air quality.","brand":"A\u0026A Mechanical Group LLC","offers":[{"title":"Default Title","offer_id":46783164678300,"sku":null,"price":6.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/1928\/2844\/files\/ChatGPTImageApr29_2026_09_27_38AM_9558a684-3fbd-44dc-9845-351b4106be9b.png?v=1777476219","url":"https:\/\/aamechanicalgroup.com\/products\/hvac-filter-21x23x1","provider":"A\u0026A Mechanical Group LLC","version":"1.0","type":"link"}