# Water pressure reducing filter DN25 Herz 2301103 for cold water

**URL:** https://aio.lv/en/product--herz-2301103--12046401
**Data updated:** 2026-03-12 19:28 (EET)
**Category:** Water Filters
**Manufacturer:** Herz
**Manufacturer code:** 2301103
**EAN:** 9004174030307
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 121.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 100.82 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--herz-2301103--12046401

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Inline cold-water filter with integrated pressure reducer, Herz model 2301103, connection size DN25. Designed to protect plumbing and appliances by filtering particulates and lowering inlet pressure for stable downstream operation. Suitable for residential and commercial water supply systems where pressure control and sediment protection are required.

## Long description

The Herz Water pressure reducing filter DN25 (model 2301103) is an inline cold-water unit that combines particulate filtration with a pressure reduction function in a single compact body. Designed for installation on mains cold-water supply lines, this device protects downstream plumbing, appliances and fixtures by removing sediments and stabilizing inlet pressure to a controlled outlet level. The DN25 connection size suits medium-diameter residential and light-commercial piping where reliable pressure control and basic sediment protection are required.
Advantages
This combined filter and pressure reducer offers space-saving integration of two functions in one housing, reducing installation complexity and potential leak points compared with separate units. The device provides consistent outlet pressure to protect appliances and fittings from pressure spikes and fluctuations while a built-in mesh captures rust, sand and particulate debris to prevent clogging and wear downstream. The unit is manufactured to industry standards for durable operation in cold-water circuits and allows straightforward access for routine maintenance.
Suitable for
 Domestic cold-water mains before household appliances (washing machines, dishwashers, water heaters)
 Supply lines feeding sanitary fittings and fixtures in apartments and houses
 Light commercial water systems where sediment protection and pressure regulation are needed
 Pre-installation ahead of water meters, valves and pressure-sensitive equipment
Key specifications
 Connection size: DN25 suitable for 25 mm pipeline systems
 Functionality: integrated particulate filter with pressure reducing regulator
 Application: cold water only
 Material: corrosion-resistant housing and removable filter element designed for potable water use
 Maintenance: serviceable strainer element accessible without full pipeline disassembly
How to use
Install the unit in the cold-water mains in the intended flow direction, ensuring DN25 connections match the pipeline. Securely tighten fittings and verify the regulator is oriented and set according to installer guidance. After installation, slowly open the upstream supply to flush air and any loose particles, then check the outlet pressure and adjust the reducer if necessary to achieve the desired downstream pressure. Periodic inspection of the removable filter element and regulator setting is recommended; isolate the unit from the supply before carrying out maintenance or cleaning.
Usage recommendations
For reliable operation, schedule regular checks of the filter element and flush or replace it when accumulation is observed. Verify that the selected downstream pressure suits connected appliances and adjust the regulator following the manufacturer's instructions. Avoid installation on hot-water lines and ensure upstream supply pressure does not exceed the manufacturer's maximum allowable input to maintain long-term performance.

## FAQ

### How much does the Herz water filter DN25 2301103 cost, and is it available for purchase?

The price is 121.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 07.07.2026 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 Herz water filter DN25 2301103 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 Herz 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 Herz 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/12046401/67532918_large.webp