The delivery method of this product with the lowest shipping fee will be non -standard -size mail. Delivery of non -standard -size mail is usually required for 2-5 days. If you are in a hurry, please select a courier service. Non -standard -size mail will be a tracking number, no damage compensation, no cash on delivery, no time specification (post posting). Includes 3 deals! It is a replacement material common to the profits filter series.. Not only physical filtration, but also bacteria will be settled, so it will play a role in biological filtration.. Physical filtration: Remove the garbage, remaining food, and fish dung with mat. Biological filtration: Decomposes ammonia, nitrous acid generated by the remaining bait and fish dung in a living bacteria. Adsorption filtration: with high -performance activity, adsorbs and removes nigori, yellowing, and stench of breeding water.. Compatible Model Profit Filter Series (X3 / F3) Powerbox SV Mini / SV240DATA (data)

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