![Johnson Pump F4B-9 Impeller Pump OEM - Flange Mount [10-24967-02] Watersports | Paddles PWM (Pulse Width Modulated) output](https://cdn.shopify.com/s/files/1/0721/9652/2136/files/98025XL.jpg?v=1759369151)
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PWM (Pulse Width Modulated) output to transmit both pressure and temperature
flat design of this whistle keeps it from holding water
which is based on ASTM D4950 performance requirements
Voltage: 10-30V DC
Johnson Pump F4B-9 Impeller Pump OEM - Flange Mount [10-24967-02] Watersports | Paddles PWM (Pulse Width Modulated) outputF4B 9 Impeller Pump OEM Flange Mount Flexible impeller pumps, F series, provide an efficient solution to most raw water pumping needs. The primary advantage of a flexible impeller pump is its self priming ability. As the vanes of the impeller are depressed and rebound, they create their own vacuum drawing fluid into the pump. A dry pump can lift the water up to as much as 3 meters. Thus a flexible impeller pump being used for engine cooling needs not