{"product_id":"studor-20302-maxi-vent-3-inch-to-4-inch-air-admittance-valve","title":"Studor 20302 Maxi-Vent 3-Inch to 4-Inch Air Admittance Valve","description":"\u003cp\u003eProduct DescriptionAllow air to enter DWV systems to equalize pressure when water drains out of the system; eliminate the need for costly roof penetrations and vent piping. 1ATD5 vents up to 500 DFUs on a stack; 1ATD6 vents up to 160 DFUs on a branch and up to 24 DFUs on a stack. 15W940 has a replaceable cabon filter to reduce plumbing drainage system odors.From the ManufacturerAllow air to enter DWV systems to equalize pressure when water drains out of the system; eliminate the need for costly roof penetrations and vent piping. 1ATD5 vents up to 500 DFUs on a stack; 1ATD6 vents up to 160 DFUs on a branch and up to 24 DFUs on a stack. 15W940 has a replaceable cabon filter to reduce plumbing drainage system odors\u003c\/p\u003e","brand":"Studor","offers":[{"title":"Default Title","offer_id":45237022097523,"sku":"WBIASB000NID704","price":69.35,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/1958\/6419\/files\/51Zq1PXutjL.jpg?v=1784031331","url":"https:\/\/slickpurchase.com\/products\/studor-20302-maxi-vent-3-inch-to-4-inch-air-admittance-valve","provider":"Slickpurchase","version":"1.0","type":"link"}