Prince Wolverine WLS-800 Valve: Interchanges with "Energy" log splitter valve found on some log splitters. Sometimes mounted upside-down directly to the cylinder port. Pressure actuated detent at “out” position releases when cylinder bottoms out. Hard chromed spool, adjustable relief, reversible handle. 1/2" NPT work ports, 3/4" NPT in & out ports. Imported & warranty by Prince.