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Flex: Manual with Crank: Fits Extend-A-Gun RC4 and VUM with RPM Outlet


SKU: YN-MP1A Category:

Outlet: 3.5″ NH Male; Silver

Flex is a mounted master stream monitor/ water cannon with flow ranges from 1250 GPM (4750 LPM) to 2000 GPM (7600 LPM).

The unique design minimizes curves in the waterway, lowering your friction loss and giving you a higher-quality, further reaching water stream. Paired with the Flex Ops app, the monitor is customizable and simple to install and program.

Features and Benefits:

  • 1250-2000 GPM (4750-7600 LPM)
  • Friction loss as low as 8 PSI
  • Crank Operator Controls
  • App available for programming and over-the-air updates

All Prices in USD


Weight 35.150 lbs

Remote Control




  • Reset

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