4 1/2" Hose Monster
The 4” and 4 ½” Hose Monster units use a precision-machined, internal orifice plate to measure flow-rates.
- Features no pitot to be damaged by rocks and flushing debris
- Excellent for flow testing large-capacity systems and unidirectional flushing
- Ideal for when flowing out of the steamer/pumper port of a hydrant
- The Flow range for this device is from about 1,000 to 2,900 GPM