KZValve's QX-330 Manifold Stack, equipped with EH3 Series Actuators, is engineered to perform essential fluid control applications in extreme conditions. Every feature is dedicated to long life and low maintenance. The three section, one-piece polypropylene manifold reduces leak points and parts, and there are two-inch full port flange inlets and one-inch full port outlets. Actuators have solid state components, and UV-modified, glass-filled nylon actuator housings are impact resistant. Plus, housings are rated NEMA 6P (waterproof) to protect internal components, and they exceed the USCG Electrical Systems Standard (ignition safe). The actuator enclosure meets the IP68 rating of the ISO 60529 Standard.