{"product_id":"penn-plax-cartridges-fc4-fits-undertow-and-perfect-a-flow","title":"Penn-Plax Cartridges FC4-Fits Undertow and Perfect-a-Flow...","description":"PEN Crtrdg Filtacarb Undertow\n\n\u003cp\u003ePenn-Plax presents the Filt-a-Carb Replacement Activated Carbon Media Cartridges. These Cartridges come in a 2 pack  and are made to fit the lift tubes Undertow and Perfecto Perfect-A-Flow filters  serving as a replacement for when it is time to cycle out aquarium filter media.\u003c\/p\u003e","brand":"Penn-Plax","offers":[{"title":"Default Title","offer_id":49005125239001,"sku":"030172399138","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0354\/6929\/5752\/files\/8bd9febf-45e3-41cf-a45b-12982831b4a4.b0fb2c4be545b04d496488245c8f49ea.jpg?v=1784901612","url":"https:\/\/shop.cascadepetsupply.com\/products\/penn-plax-cartridges-fc4-fits-undertow-and-perfect-a-flow","provider":"Cascade Pet Supply","version":"1.0","type":"link"}