The 1¾″ FM Nozzle Insert™ measure from 282-771 GPM.
Nozzle Inserts obtain flow-rates lower than what the 2½″ orifice on the HM2H can accurately measure. They are required for flow-rates lower than 533 GPM.
FM Nozzle Inserts™ have achieved Factory Mutual approval for accurate flow rates when used with the 2½″ Hose Monster®.
NOTE: Pricing on this website is for sales within North America and South America. Please contact us for global availability and pricing.
FM Nozzle Inserts™ have flow characteristics about equal to those of the 30″ long playpipe. The Nozzle Insert™ adds an extra layer of safety because with no soldered or brazed connections to wear out with age, it will never come apart during a flow test. Both sizes are Factory Mutual Approved for flow rate accuracy. Each one is about 3.5″ long and weighs only about a half-pound. You simply slide the nozzle insert into the inlet of the 2½″ Hose Monster®. The hose threads in on top of it.
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