# Flush outlet coupling CERSANIT for in-wall frame SLIM&SILENT, diameter 90 mm (K99-0159)

**URL:** https://aio.lv/en/product--cersanit-k99-0159--12042565
**Data updated:** 2026-03-12 19:24 (EET)
**Category:** Sinks & Sink Accessories
**Manufacturer:** CERSANIT
**Manufacturer code:** K99-0159
**EAN:** 5907720694630
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 45.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 38.01 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cersanit-k99-0159--12042565

## 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

CERSANIT flush outlet coupling designed for SLIM&SILENT in-wall frames, with a nominal diameter of 90 mm. The component provides a connection point for waste discharge in concealed cistern installations. Suitable for use in toilet installation systems where a 90 mm outlet interface is required; intended for plumbers and bathroom fitters installing or repairing in-wall frames.

## Long description

CERSANIT flush outlet coupling for SLIM&SILENT in-wall frames, nominal diameter 90 mm, is a connection component used in concealed cistern installations. Designed to form a reliable outlet interface between the in-wall frame and the WC waste pipe, the coupling matches the dimensions of SLIM&SILENT frames and supports standard 90 mm outlet systems. The part is intended for installation and maintenance work on toilet frames where a neat, secure waste connection is required.
Advantages
The coupling is manufactured to fit SLIM&SILENT in-wall frames, providing dimensional compatibility that simplifies installation. Its 90 mm nominal diameter ensures a direct connection to standard waste pipes without additional adapters. The component is designed for concealed installation, helping to maintain a clean visible finish and reducing the number of exposed joints. Materials and shape are selected to give a stable, leak-resistant connection when installed according to manufacturer guidelines.
Suitable for
Installation of SLIM&SILENT in-wall toilet frames requiring a 90 mm outlet
Replacement or repair of existing 90 mm flush outlet connections in concealed cistern systems
Professional plumbing and bathroom fitting projects involving concealed WC installations
Retrofit work where the outlet interface must match a 90 mm waste pipe
Key specifications
Nominal outlet diameter: 90 mm
Designed for use with SLIM&SILENT in-wall frames
Intended for concealed cistern/toilet frame installations
Functional purpose: coupling for waste discharge interface
How to use
Position the coupling in the outlet area of the SLIM&SILENT in-wall frame so that the socket aligns with the waste pipe run. Ensure surfaces are clean and free of debris before fitting. Push or secure the coupling into the frame outlet until it seats firmly; depending on installation details, use the recommended sealing method or fastening specified by the frame manufacturer. After fitting, connect the 90 mm waste pipe to the coupling and verify alignment and support to avoid strain on joints. Complete any required sealing and test the connection for leaks before closing the wall or installing the finished sanitary fixtures.
Usage recommendations
Use only with compatible SLIM&SILENT frames and 90 mm waste pipes. Verify dimensions on-site before installation and follow the in-wall frame manufacturer's installation instructions. Inspect seals and connections after initial testing and periodically during maintenance to ensure continued leak-free operation.

## FAQ

### How much does the CERSANIT flush outlet coupling SLIM&SILENT Ø90 mm cost, and is it available for purchase?

The price is 45.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 281 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. 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/12042565/67529536_large.webp