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Filter Gravel Underbedding

Filter Gravel Underbedding

  • 3500


"B" Gravel, used as underbedding in many filtration systems

Available in 20 lbs (for a 9" or 10" tank diameter) or 50 lbs (for a 13" or 14" tank diameter).  If your tank has a sticker on it that says "Vortech Inside," then you have a Vortech tank, which typically will not require a gravel underbedding.