{"product_id":"bissell-knob-height-adjustment-3540-1-3133725","title":"Bissell Knob Height Adjustment - 3540-1","description":"\u003cp\u003eRestore carpet-to-hard-floor versatility with this OEM height adjustment part for the Bissell 3540 and other similar models. Without a working height adjustment, your vacuum either sits too high to clean effectively or too low to roll smoothly.\u003c\/p\u003e\n\u003cp\u003eThe height adjustment system ensures the brush roll sits at the optimal distance from your floor surface. Setting it too high means the brush roll cannot reach embedded dirt, while setting it too low makes the vacuum hard to push and can damage both the brush roll and your carpet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Bissell: 3540\u003c\/p\u003e","brand":"Bissell","offers":[{"title":"Default Title","offer_id":48456542486778,"sku":"3133724","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3934\/3354\/files\/3133724_1_7d1d6180-a636-424f-aa51-a1b290a28954.jpg?v=1773354245","url":"https:\/\/evacuumsandmore.com\/products\/bissell-knob-height-adjustment-3540-1-3133725","provider":"Vacuums and More","version":"1.0","type":"link"}