Description
Harwil – 100719 FLOAT SWITCH SHUTOFF – Waste Tank APO & High-Level Shutoff Sensor
Brief Overview:
The Harwil Float Switch (OEM #100719) is a high-reliability water level sensor designed to automatically control Automatic Pump-Out (APO) systems or trigger high-level shutoff in waste tanks. As wastewater levels rise, the internal float activates the switch, either turning the APO pump on/off or shutting down the truckmount system to protect the blower from water contamination.
Ideal for use in Sapphire Scientific, Prochem, and Hydramaster truckmounts, this float switch ensures optimal safety and operational efficiency in restoration and carpet cleaning setups. It is compatible with a range of OEM part numbers, making it a direct-fit replacement for many industry systems.
Key Features:
✅ Automatic float activation – Controls APO pump or shuts down system to prevent overflow
✅ Protects equipment – Prevents wastewater from damaging blowers
✅ Easy integration – Compatible with major truckmount brands
✅ Durable and dependable – Designed for high-moisture environments
✅ OEM replacement – Works with multiple OEM part numbers
✅ Compact design – Fits standard truckmount waste tanks
Specifications:
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Function: Water level float switch for APO pump or system shutdown
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OEM Code: 100719
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Compatible With: Sapphire Scientific, Hydramaster, Prochem
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Replaces: SS-69-000S, 157-091, 29-009
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Mounting: Internal tank float configuration
Available Pack Sizes/Contents:
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Single Unit – Float switch with wiring (100719)
Variants:
| SKU | Option | Notes |
|---|---|---|
| 100719 | Individual Unit (Float Switch) | For APO control or high-waste tank shutoff |



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