# VIEGA double pipe siphon 1.5" model 329174 – plumbing drain connector for two outlets

**URL:** https://aio.lv/en/product--viega-329174--11470515
**Data updated:** 2026-03-07 20:19 (EET)
**Category:** Sinks & Sink Accessories
**Manufacturer:** VIEGA
**Manufacturer code:** 329174
**EAN:** 4015211329174
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 15.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--viega-329174--11470515

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

VIEGA double pipe siphon 1.5" (model 329174) is a plumbing siphon designed for connecting two drain outlets to a single waste system. The unit accepts 1.5-inch pipe connections and functions as a trap to prevent sewer gases while directing wastewater. Suitable for use under sinks, basins or appliances where two outlets must be combined into one discharge line.

## Long description

The VIEGA double pipe siphon 1.5" model 329174 is a plumbing trap designed to connect two drain outlets to a single waste line. It accepts 1.5-inch pipe connections and provides a water seal to prevent sewer gases while routing wastewater from two fixtures into one discharge. The unit is intended for installation under sinks, washbasins, or appliances where two outlets need to be combined into one drainage run.
Advantages
This double pipe siphon offers a compact solution for combining two drains into a single outlet while maintaining an effective water trap. The component is built to fit standard 1.5-inch plumbing connections, ensuring compatibility with common domestic and light-commercial drain piping. Its design simplifies under-sink plumbing layouts by reducing the number of individual discharge lines and helps maintain a reliable seal to limit odors and gas ingress.
Suitable for
 Under-sink installations with two basin or appliance outlets
 Washrooms or utility rooms where two fixtures share one discharge line
 Retrofit projects that require combining separate drains into a single waste pipe
Key specifications
 Connection size: accepts 1.5-inch drain pipes
 Function: double-inlet trap for two outlets into one discharge
 Application: suitable for sinks, basins and similar wastewater fixtures
 Installation location: under-sink or concealed plumbing compartments
How to use
Position the double pipe siphon so both inlet pipes align with the two fixture drains and connect the outlet to the building’s waste line using the matching 1.5-inch pipe. Ensure all joints and seals are correctly fitted and tightened according to standard plumbing practice. Once installed, fill the trap with water to establish the water seal and run a test by discharging water from both fixtures to confirm there are no leaks and that wastewater flows freely into the discharge line.
Usage recommendations
Verify local plumbing codes and, if necessary, consult a qualified plumber to ensure correct venting and trap configuration. Regularly inspect connections for leaks and remove debris from sink strainers to reduce the likelihood of clogs that could affect trap performance.

## FAQ

### How much does the VIEGA double pipe siphon 1.5" 329174 cost, and is it available for purchase?

The price is 18.49 € (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 15.07.2026 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 VIEGA 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 VIEGA 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/11470515/66108697_large.webp