# CALEFFI magnetic filter for under-boiler installation XS® model 545900

**URL:** https://aio.lv/en/product--caleffi-545900--11825999
**Data updated:** 2026-03-09 11:15 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** CALEFFI
**Manufacturer code:** 545900
**EAN:** 8016615613797
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 122.49 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 101.23 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--caleffi-545900--11825999

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

Magnetic filter CALEFFI XS® (model 545900) is designed for under-boiler installation to capture ferrous particles and protect heating system components. The unit uses a magnetic core to attract iron debris and a filter body to retain sludge and particulates, reducing wear on pumps and heat exchangers. Suitable for residential and light commercial central heating systems.

## Long description

CALEFFI magnetic filter XS® model 545900 is a compact under-boiler filter designed to protect central heating systems by capturing ferrous particles and retaining sludge. Installed on the return pipework near the boiler, the unit combines a strong magnetic core that attracts iron debris with a mechanical filter body that traps non‑magnetic particulates. The result is reduced wear on circulating pumps, heat exchangers and other hydraulic components, and improved reliability of residential and light commercial heating installations.
Advantages
The magnetic core efficiently attracts and holds iron filings and rust particles, helping to prevent blockages and erosion in sensitive components. The filter body retains sludge and coarse debris, easing routine maintenance by concentrating contaminants in a removable housing. Designed for under-boiler installation, the product has a compact footprint and straightforward connection points for integration with existing return lines. Materials and construction are selected for compatibility with typical heating system fluids and temperatures.
Suitable for
Residential central heating systems
Light commercial heating installations
Boiler return lines where protection of pumps and heat exchangers is required
Systems prone to ferrous contamination or visible rust
Key specifications
Installation position: under‑boiler, on return pipework
Filtration principle: magnetic separation combined with mechanical particle retention
Target contaminants: ferrous particles, rust, sludge and coarse particulates
Compatibility: designed for closed central heating circuits using standard heating fluids
Construction: removable filter housing with magnetic core for maintenance and cleaning
How to use
Mount the magnetic filter on the return line close to the boiler according to system piping layout and local regulations. Isolate the section of piping, drain the system pressure as required and connect the unit using the appropriate fittings. After installation, system commissioning should include flushing to remove loose debris, followed by refilling and venting. Periodically isolate the filter, remove the housing and clean the magnetic core and filter surfaces to restore full performance. Follow the boiler and system manufacturer's instructions when performing maintenance.
Usage recommendations
For best results, check the filter during initial commissioning and then inspect at regular maintenance intervals; frequency depends on system condition and age. When cleaning, avoid aggressive mechanical impacts on the magnetic core and ensure all seals are properly reinstalled to prevent leaks. Combine the magnetic filter with good water treatment and system flushing practices to minimise future contamination and extend component life.

## FAQ

### How much does the CALEFFI magnetic filter XS® 545900 cost, and is it available for purchase?

The price is 122.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 148 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 02.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can CALEFFI magnetic filter XS® 545900 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All CALEFFI products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized CALEFFI service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11825999/67227575_large.webp