{"product_id":"2-pre-filters","title":"Full Size Pre-Filter Sock","description":"\u003cp\u003eThe outer pre-filter sock is used to fit our full size filter, providing an initial layer of protection for the main filter, keeping it cleaner for longer. Maintaining a clean and dry filter is important to keep the airflow in your helmet optimal. Water is the main enemy for a filter, but this sock helps to keep moisture and debris from getting into the filter media and ruining air flow. \u003c\/p\u003e\n\u003cp\u003eThese socks are made specificaly for our filters by Filter Wears in California and have our logo on the top of the non-stud filter. \u003c\/p\u003e\n\u003cp\u003e* Choose the stud hole option if you're using one of our filters with the 1\/4\" stud to use our standard filter water shield.  \u003c\/p\u003e","brand":"3D Air Systems","offers":[{"title":"No stud hole","offer_id":48360333443317,"sku":null,"price":25.0,"currency_code":"USD","in_stock":true},{"title":"With stud hole","offer_id":48502413525237,"sku":null,"price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0747\/5354\/0341\/files\/FWSockTop.png?v=1783107642","url":"https:\/\/3dairsystems.com\/products\/2-pre-filters","provider":"3D Air Systems","version":"1.0","type":"link"}