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