HCA is used in conjunction with HCA Kit to position filter cartridge(s) parallel (rather than perpendicular) to tank bottom. HCA kit includes Threaded Adapter, Schedule 40 Pipe cut to satisfy your tank depth, HCA, and two Male Adapters. Use kit for bottom filtration or to filter solution while transferring from one tank to another. Fits BX650, BX1200, BX3000, BX5000, BXL2500 & BXL5000. Includes Filter Screws.

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