# Anti-pollution Check Valve UN ZK-67-025-C — 1" inlet/outlet, type EA, single piece

**URL:** https://aio.lv/en/product--un-zk-67-025-c--11946943
**Data updated:** 2026-03-11 13:42 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** UN
**Manufacturer code:** ZK-67-025-C
**EAN:** 5907798744664
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 16.11 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--un-zk-67-025-c--11946943

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

UN anti-pollution check valve model ZK-67-025-C (type EA) is a 1" valve supplied as a single piece designed to prevent backflow and contamination in water installations. It fits systems requiring a one‑inch connection and is used for protecting potable water lines, irrigation setups and domestic plumbing by allowing unidirectional flow and blocking reverse flow.

## Long description

UN anti-pollution check valve ZK-67-025-C (type EA) is a single-piece 1" inlet/outlet valve designed to prevent backflow and contamination in water installations. The valve permits unidirectional flow while reliably blocking reverse flow, making it suitable for use in potable water lines, irrigation systems and general domestic plumbing where protection against back-siphonage and contamination is required.
Advantages
The single-piece construction reduces the number of joints and potential leak points, improving durability and simplifying installation. A one-inch connection size ensures compatibility with common residential and light-commercial piping. The valve is designed to provide consistent sealing under normal operating conditions, offering straightforward mechanical operation without the need for external power or controls.
Suitable for
Potable water supply protection in residential installations
Irrigation systems where backflow prevention is required
Domestic plumbing appliances and fixtures
Connection to pumps and booster assemblies with 1" ports
Key specifications
Connection size: 1" inlet and outlet
Configuration: single-piece check valve
Type: EA anti-pollution (backflow prevention)
Flow direction: unidirectional
Mounting orientation: inline installation
How to use
Install the valve in the pipeline respecting the indicated flow direction. Ensure piping is clean and free of debris before fitting to prevent damage to the sealing surfaces. Use appropriate thread sealing or gaskets compatible with potable water systems and tighten to the torque recommended for the piping material. After installation, perform a pressure test at normal operating pressure to confirm there are no leaks and that reverse flow is blocked.
Usage recommendations
For reliable long-term performance, inspect the valve periodically for signs of wear, mineral buildup or debris, and clean or replace it if functionality is impaired. Use the valve within the manufacturer's recommended pressure and temperature ranges and follow local regulations when installing backflow prevention devices in potable water systems.

## FAQ

### How much does the UN ZK-67-025-C anti-pollution check valve 1" cost, and is it available for purchase?

The price is 19.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 19 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 16.07.2026 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 UN 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 UN 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/11946943/67390430_large.webp