Bulkhead Fittings

Filter

    Bulkhead Fittings

     Bulkhead fittings are used to connect aquariums to sump style filters. They come in several sizes and flow rates.  Typically, larger bulkheads are used in overflow boxes for gravity fed drains.  Standard industry drain bulkhead size is 1-inch.  Most aftermarket sump filters come stock with a 1-inch bulkhead hole.  Smaller bulkhead fittings are normally used for return lines from the filter back to the aquarium.  Choose the bulkhead size that best suits your flow needs.

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