The unique spool valve design and simple construction of the monitor Magnum frost proof yard hydrant provides dependable operation and easy servicing in any weather The "Balanced Valve" allows smooth, easy flow adjustment, since the water flow does not oppose valve movement, as in other yard hydrants Corrosion-resistant brass valve body, acetyl spool and 3/4 in SCH 80 PVC wet pipe contain the water flow, extending hydrant life The elimination of a packing nut, valve rod and linkage adjustment eliminates most of the maintenance and repair kits required with ordinary hydrants When properly installed, occasional easy replacement of the three standard O-rings should be the only normal maintenance required Hardened steel head