{"product_id":"stealth-ro-150-300-membrane","title":"Stealth RO 150\/300 Membrane","description":"\u003cp\u003eStealth-RO150\/300 RO Membrane reduces 89%+ of PPM of total dissolved solids.\u003c\/p\u003e\u003cp\u003eThere are two indications as to when to change your membranes.\u003c\/p\u003e\u003cp\u003e1. Test the RO and source\/inlet water to see what percentage of the inlet water's PPM the 150 is filtering out (rejection %). You should see approximately 98% of the inlet PPM's being removed when the membrane is new. If the rejection % falls under an acceptable level (typically 90%) it's time to change the membrane.\u003c\/p\u003e\u003cp\u003e2. When the flow rate of the product water slows down significantly. This can also happen if your pre-filters are clogged. If you change your pre-filters and the product water still flows slowly then it's an indication you need a new membrane.\u003c\/p\u003e\u003cp\u003eWhen in doubt contact Hydro-Logic.\u003c\/p\u003e","brand":"Hydro-Logic","offers":[{"title":"Default Title","offer_id":58450837176623,"sku":"400000033037","price":149.04,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/4875\/4479\/files\/HL22121_1.jpg?v=1789077679","url":"https:\/\/mattshydroponics.com\/products\/stealth-ro-150-300-membrane","provider":"Matt’s Hydroponics","version":"1.0","type":"link"}