Description
Biasi BI1441501 Magnetic Flow Switch & Filter | Hot Water Flow Sensor
The Biasi magnetic flow switch and filter BI1441501 helps manage water flow and protect the boiler system from debris, so your boiler can run more smoothly and efficiently. It supports reliable operation by combining flow detection with filtration in one unit. However, if the part becomes blocked or faulty, it can affect heating and hot water performance. Therefore, replacing it helps restore normal system function and dependable day-to-day use.
Compatible Boilers
This part is compatible with the following Biasi boiler models:
Advance Series
- 25C – GC No. 47-583-43
- 30C – GC No. 47-583-44
- 35C – GC No. 47-583-45
Advance Plus ERP Series
- 25C – GC No. 47-583-35
- 30C – GC No. 47-583-36
- 35C – GC No. 47-583-37
Inovia Series
- 25C – GC No. 47-583-32
- 30C – GC No. 47-583-33
- 35C – GC No. 47-583-34
Inovia ERP Series
- 25C – GC No. 47-583-38
- 30C – GC No. 47-583-39
- 35C – GC No. 47-583-40
Why Choose This Product?
This brand new Biasi magnetic flow switch and filter offers a reliable replacement for worn or blocked components. It helps support correct water flow and cleaner system operation, while also giving you confidence with a 12-month warranty.
Delivery and Return
Order before 1 PM for same-day dispatch with standard and next-day delivery options available. Returns are accepted within 30 days if the item is unused and in its original packaging. Always use a qualified engineer for safe installation.
Frequently Asked Questions
1. What does the Biasi magnetic flow switch and filter do?
This part helps monitor water flow and filter debris within the boiler system. As a result, it supports smoother operation and helps protect internal components.
2. Why would this part need replacing?
If the unit becomes faulty or blocked, the boiler may struggle with correct flow detection or system performance. Therefore, replacing it can help restore proper heating and hot water operation.
3. Is this part brand new?
Yes, this listing is for a brand new Biasi magnetic flow switch and filter. It is supplied as a replacement part for selected boilers using part number BI1441501.
4. How do I confirm compatibility?
You should match the part number BI1441501 with your existing component and boiler model. This is important because some Biasi boilers use different versions of similar parts.
5. Does this product come with a warranty?
Yes, this part comes with a 12-month warranty for extra peace of mind. That added cover helps when replacing an important boiler component.





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