Harwil Q12DS Flow Switch Kit [1/2" MPT] [2A] (Q12DS501.54SNO1K)
| Heater Parts | |
| Harwil | |
| Q12DS501-54SNO1K | |
| 26-578-1101 |
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A flow switch kit helps verify water movement in a compatible system while simplifying installation through a matched package of parts, and this Harwil Q12DS version is a 2 amp kit with a 1/2 inch male pipe thread connection using the Q12DS501.54SNO1K reference. Kits like this are useful when a more complete replacement approach is preferred over piecing together separate components.
This kit has practical value because it is built around a known Harwil flow-switch platform and provides a cleaner service path when restoring original flow-sensing behavior. A properly selected kit helps support dependable water-motion confirmation and contributes to more consistent heater or equipment protection.
This type of part is especially useful during repair work where the original flow switch and related connection setup need to be renewed together to avoid repeat service issues. That helps keep the repair more complete and more dependable.
Installed in the proper application, this flow switch kit helps support reliable flow sensing and cleaner overall system service.
- Harwil Q12DS flow switch kit rated at 2 amps with 1/2 inch male pipe thread connection
- Helps verify water movement in compatible systems
- Useful when replacing a flow switch with a more complete kit solution
- Supports dependable heater and equipment protection
- Improves installation convenience and service confidence
Harwil – Flow Switches, Sensors and Pool & Spa Control Components |
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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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