Harwil D1 Q10N Flow Switch [1" MPT] [0.5A] (1710-14)

Heater Parts
Harwil
1710-14
26-578-1005
COMPARE AT $107.49
OUR PRICE $85.99
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A flow switch helps confirm water movement in a compatible system before connected equipment operates, and this Harwil D1 Q10N version is a 0.5 amp model with a 1 inch male pipe thread connection using the 1710-14 reference. Light-duty flow switches like this are useful in control applications where accurate flow verification matters more than heavy switching capacity.

This switch has practical value because it is tailored for a specific flow-monitoring role and connection format, helping preserve the original design of compatible equipment. A properly selected Q10N switch helps support dependable control response and contributes to more consistent protection against no-flow operating conditions.

This type of part is especially useful when replacing an original switch that has become unreliable, stuck, or non-responsive. That helps restore the intended safety logic without forcing broader system changes.

Installed in the proper application, this flow switch helps support accurate flow detection and cleaner equipment protection.

  • Harwil D1 Q10N flow switch rated at 0.5 amp with 1 inch male pipe thread connection
  • Helps verify water movement in compatible systems
  • Useful in lighter-duty control applications
  • Supports dependable heater and equipment protection logic
  • Improves service accuracy and operating confidence
Harwil – Flow Switches, Sensors and Pool & Spa Control Components
Who is Harwil?

Harwil Corporation is a leading manufacturer of flow switches and control instrumentation used in water treatment, HVAC, and pool and spa systems. With over 65 years of experience, Harwil is known for precision-engineered components that help monitor and regulate water flow in critical applications. Their products are widely used to ensure safe and efficient operation of pumps, heaters, and filtration systems.

What products does Harwil specialize in?

Harwil specializes in flow switches, flow sensors, level switches, and control components. Their product lineup includes devices designed to detect water flow and trigger system responses, such as activating heaters or shutting down equipment to prevent damage. These components are essential for maintaining proper system operation and protecting equipment.

Why choose Harwil parts for your pool or spa?

Harwil products are known for accuracy, durability, and dependable performance in demanding environments. Their flow switches help ensure that equipment operates only when proper water flow is present, reducing the risk of overheating or system failure. Professionals choose Harwil for reliable control components that improve safety and extend equipment life.

How do you identify and choose the correct Harwil part?

To select the correct Harwil component, it’s important to match specifications such as flow rate, connection type, voltage, and system compatibility. Reviewing part numbers and installation requirements ensures proper fit and performance. Choosing the right flow switch helps maintain safe operation and efficient system performance.

Need help finding the right Harwil part?

At Bath & Spa Parts Online, we carry a wide selection of Harwil pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.

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