# Leak sealer CALEFFI C4 (model 570914) — pipe and radiator leak repair compound

**URL:** https://aio.lv/en/product--caleffi-570914--11797235
**Data updated:** 2026-03-09 07:30 (EET)
**Category:** Cleaning Products
**Manufacturer:** CALEFFI
**Manufacturer code:** 570914
**EAN:** 8016615603590
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 45.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 37.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--caleffi-570914--11797235

## 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

CALEFFI C4 leak sealer (model 570914) is a specialist compound for repairing leaks in heating and plumbing systems. Designed to be added to system water, it targets small leaks in pipes, joints, radiators and fittings. The product is intended for maintenance and emergency repair to reduce downtime and limit fluid loss in residential and light commercial systems.

## Long description

CALEFFI C4 leak sealer is a specialist compound formulated to repair small leaks in heating and plumbing systems by being added directly to system water. Intended for maintenance and emergency use in residential and light commercial installations, the product works on pinhole leaks in pipes, joints, radiators and fittings to reduce fluid loss and minimise downtime without requiring immediate disassembly of components.
Advantages
CALEFFI C4 is designed for easy integration into circulating systems and acts without mechanical intervention, enabling temporary or short-term repair of small leaks. The compound is compatible with typical heating system materials and works while the system is in operation, allowing rapid response to minor faults. Its formulation aims to localise and seal leaks at their source, helping to preserve system pressure and reduce the need for urgent component replacement during the initial incident.
Suitable for
Repairing pinhole and small leaks in central heating pipework
Sealing leaks at radiator connections and valves
Temporary repair of leaks in domestic and light commercial plumbing systems
Maintenance use to limit fluid loss before scheduled service
Key specifications
Form: liquid additive for system water
Application method: introduced into circulating system water
Target leaks: small leaks, pinholes, joints, radiator connections and fittings
Use case: maintenance and emergency leak reduction
Compatibility: formulated for use with common heating system materials
How to use
Introduce the recommended quantity of CALEFFI C4 into the system water following the manufacturer’s dosing guidance. Ensure the system is circulating so the compound can reach the leak site; in many cases this means operating the pump and restoring normal temperature and pressure conditions. After addition, monitor the system for signs of reduced leakage and maintain usual safety checks for pressure and temperature. If leaks persist or are extensive, plan for mechanical repair by a qualified technician.
Usage recommendations
Use CALEFFI C4 as a temporary or maintenance measure for small leaks. Do not treat as a permanent replacement for mechanical repair when fittings, joints or components show significant damage. For best results, follow the product dosing instructions and consult system documentation or a heating professional if unsure about compatibility with specific system fluids or materials.

## FAQ

### How much does the Leak sealer CALEFFI C4 570914 cost, and is it available for purchase?

The price is 45.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 16 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. All transactions are 100% secure and encrypted.

### 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/11797235/67198124_large.webp