# Anti-pollution valve UN model ZK-67-020-C, 3/4" inlet/outlet, EA type

**URL:** https://aio.lv/en/product--un-zk-67-020-c--11946944
**Data updated:** 2026-03-11 13:42 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** UN
**Manufacturer code:** ZK-67-020-C
**EAN:** 5907798744657
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 10.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--un-zk-67-020-c--11946944

## 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 valve model ZK-67-020-C (type EA) is a 3/4" valve designed to prevent backflow contamination in water supply systems. Supplied as a single unit, it connects to 3/4" piping and provides a protective check function to reduce risk of polluted water entering potable lines. Suitable for residential and light commercial plumbing where backflow protection is required.

## Long description

UN anti-pollution valve model ZK-67-020-C (type EA) is a 3/4" inlet/outlet valve designed to prevent backflow contamination in water supply systems. Supplied as a single unit, the valve connects directly to 3/4" piping and provides a protective check function that reduces the risk of polluted or non-potable water entering potable water lines. The construction and operating principle make it suitable for installations where simple, compact backflow prevention is required.
Advantages
The valve offers a compact design and straightforward connection to standard 3/4" pipes, allowing quick installation in tight spaces. Its check mechanism provides reliable one-way flow control to mitigate backflow risks. As a single-unit device, it simplifies replacement and reduces the number of components required in a protection point. The device is appropriate for both residential and light commercial plumbing systems where basic anti-pollution protection is needed.
Suitable for
Domestic potable water lines requiring backflow prevention
Garden irrigation and outdoor taps to prevent contamination of household supply
Light commercial plumbing fixtures with 3/4" connections
Wall-mounted or in-line installations with limited space
Key specifications
Connection size: 3/4" inlet and outlet
Type: EA anti-pollution (single-unit backflow prevention)
Function: one-way check valve to prevent reverse flow
Supply form: single complete valve unit
Typical applications: potable water protection in residential and light commercial systems
How to use
Install the valve in-line with the water supply using 3/4" compatible fittings, ensuring correct flow direction as indicated on the body. Tighten fittings to manufacturer-recommended torque to avoid leaks and do not overtighten plastic components if present. After installation, pressurize the system and inspect connections for leaks. Periodically test the valve operation by checking for proper forward flow and absence of reverse flow; follow any local regulations for testing backflow prevention devices.
Usage recommendations
Use this valve where basic anti-pollution protection is required and where local codes permit a single-unit EA type device. For installations with higher hazard potential or where formal backflow prevention certification is required, consult applicable standards and consider more advanced assemblies. Perform regular inspections and maintenance to ensure reliable operation and replace the unit if wear or damage is detected.

## FAQ

### How much does the UN anti-pollution valve ZK-67-020-C 3/4" cost, and is it available for purchase?

The price is 12.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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/11946944/67390431_large.webp