# Drain coupling for concealed cistern CERSANIT K97-166, connection diameter 90 mm

**URL:** https://aio.lv/en/product--cersanit-k97-166--12074796
**Data updated:** 2026-03-12 21:54 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** CERSANIT
**Manufacturer code:** K97-166
**EAN:** 5907720653187
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 23.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cersanit-k97-166--12074796

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

CERSANIT drain coupling K97-166 is a replacement/installation component for concealed flush cisterns and in-wall frames. It provides a 90 mm connection diameter for reliable wastewater discharge between cistern outlet and waste pipe. Suitable for servicing, repair or installation of compatible CERSANIT in-wall systems where a 90 mm outlet interface is required.

## Long description

CERSANIT drain coupling K97-166 is a replacement and installation component designed for concealed flush cisterns and in-wall frames. It provides a secure connection between the cistern outlet and the building waste pipe with a 90 mm connection diameter. The coupling is intended for use in systems where a 90 mm outlet interface is required, enabling reliable wastewater discharge and straightforward integration into compatible CERSANIT installations.
Advantages
The coupling offers a robust interface for wastewater flow with consistent 90 mm diameter alignment, minimising installation errors and ensuring stable sealing between the cistern outlet and waste pipe. Its design supports straightforward replacement or retrofit operations without the need to modify surrounding in-wall frame components. The component is compatible with common concealed cistern configurations and simplifies maintenance by providing an accessible, standard-dimension connection point.
Suitable for
Replacement of worn or damaged drain couplings in concealed flush cisterns
Installation of in-wall frames and concealed cisterns requiring a 90 mm outlet
Servicing and repair work on compatible CERSANIT concealed systems
Retrofit projects where an existing outlet must be adapted to a 90 mm waste pipe
Key specifications
Connection diameter: 90 mm
Application: concealed flush cisterns and in-wall frames
Function: coupling between cistern outlet and waste pipe for wastewater discharge
Mounting: in-line connection designed for standard concealed cistern interfaces
How to use
Position the drain coupling to align the cistern outlet with the waste pipe, ensuring the 90 mm diameters are concentric. Follow the cistern manufacturer’s installation instructions for securing the coupling and sealing interfaces to prevent leaks. Use appropriate sealants or gaskets where specified by the cistern or plumbing guidelines and verify the connection is firm before closing the wall or finishing the installation. Test the system by flushing and inspecting for any signs of leakage or misalignment.
Usage recommendations
Use the coupling as part of a complete concealed cistern installation or repair, and check compatibility with the cistern and in-wall frame model prior to fitting. If uncertain about fitment or sealing methods, consult installation instructions or a qualified plumber to ensure correct installation and long-term performance.

## FAQ

### How much does the CERSANIT drain coupling K97-166 90 mm cost, and is it available for purchase?

The price is 28.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 245 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 06.07.2026 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 CERSANIT 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 CERSANIT 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/12074796/67559232_large.webp