Our most efficient, highest-capacity PX for seawater reverse osmosis desalination facilities.

The PX Q400 is Energy Recovery’s highest-capacity pressure exchanger, offering best-in-class performance from our trusted, leading PX® Pressure Exchanger® with up to 98% efficiency. Thanks to its high performance and lower maintenance, the PX Q400 delivers significant energy and cost savings and offers the lowest projected life cycle cost of any proven energy recovery device (ERD) for seawater reverse osmosis (SWRO) desalination and wastewater treatment. At 77 dB, the PX Q400 is also our quietest PX yet.

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