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Big Boy Hose Monster - 125mm (5") Storz w/ Gauge

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    Hand Tools

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    The BigBoy Hose Monster™ is used for fire flow testing of hydrants, water main flushing, and fire pump testing from connections 4″ or larger. The BigBoy Hose Monster incorporates the patented FM Approved Pitotless Nozzle™ so rocks and flushing debris pass through without causing pitot damage and accurately measures water flow-rates from 856 to 2,759 GPM. The BigBoy Hose Monster body is made from Polypropylene and the Pitotless Nozzle is made from precision machined Aluminum.

    • Perfect for Hydrant Flow Testing or Water Main Flushing.
    • Uses the patented FM Approved Pitotless Nozzle™ so you’ll never have to change out a pitot because it got hit by a rock.
    • Read your GPM flow-rate directly on the included gauge face while flowing.
    • Weighs only 13 pounds yet handles high flow hydrants up to 2,759 GPM
    • Flow from 4.5″, or 5″ STORZ connections with additional accessories


    • Dimensions: 21"l x 19"w x 9"d (53.3cm x 48.3cm 22.9cm)
    • Ship Weight: 16 lbs. (7.3kg)
    • GPM Min: 856
    • GPM Max: 2759
    • PSI Min: 5
    • PSI Max: 55
    • Body Material: Injection-molded, glass-filled polypropylene
    • Pitotless Nozzle Material: 6061-T6-511 aluminum
    • Warranty: 2-Year Limited Warranty
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    Big Boy Hose Monster - 125mm (5") Storz w/ Gauge