This EH series is interchangeable with PARKER 3000 SERIES, HANSEN WA56000 SERIES, SAFEWAY S30 SERIES, FASTER PVVM SERIES, STUCCHI IV-HP SERIES, DNP PVM SERIES, VOSWINKEL HJ SERIES, and DIXON T SERIES. Steel Product. Heavy-duty screw-on couplings engineered for extreme-pressure applications (bridge maintenance jacks, industrial hydraulics). Features a premium metal-to-metal poppet valve seal delivering industry-leading pressure performance. ISO 14540 compliant for guaranteed interchangeability.