# Insulation Plug Koelner KES-90/20-MW — mineral wool, 90 mm thickness

**URL:** https://aio.lv/en/product--koelner-kes-9020-mw--11829148
**Data updated:** 2026-03-09 14:37 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Koelner
**Manufacturer code:** KES-90/20-MW
**EAN:** 5906675471563
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 228.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 189.25 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koelner-kes-9020-mw--11829148

## 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

Insulation plug Koelner KES-90/20-MW is a 90 mm-thick mineral wool plug designed for thermal and acoustic insulation of pipe penetrations and service openings. Made from mineral wool, it provides heat resistance and sound damping for sealing circular or rectangular voids in walls, floors and ceilings. Suitable for construction, HVAC and plumbing applications where fire-resistant and insulating infill is required.

## Long description

Insulation plug Koelner KES-90/20-MW — mineral wool, 90 mm thickness is a compact thermal and acoustic sealing element manufactured from mineral wool. Designed to fill circular and rectangular openings in walls, floors and ceilings, this 90 mm-thick plug combines heat resistance and sound absorption to limit heat loss, reduce noise transfer and contribute to fire-retardant building details. The product is intended for use where reliable insulation and mechanical stability are required around pipe penetrations and service shafts.
Advantages
The mineral wool construction provides stable thermal insulation and effective sound damping while maintaining non-combustible properties. Its uniform thickness and compressible edges enable a snug fit into irregular openings, improving airtightness and reducing thermal bridging. The material is dimensionally stable, resistant to rot and chemicals typically encountered on construction sites, and compatible with common sealing compounds and firestopping systems.
Suitable for
Sealing pipe penetrations through walls, floors and ceilings
Filling service openings around HVAC ducts and plumbing runs
Fire-rated partitions and passive fire protection details
Noise reduction in mechanical rooms and residential buildings
Key specifications
Material: mineral wool
Thickness: 90 mm
Shape: plug suitable for circular and rectangular voids
Functions: thermal insulation, acoustic damping, fire-resistant infill
Compatibility: suitable for use with common sealants and firestop systems
How to use
Measure the opening and, if necessary, trim the plug to achieve a tight fit. Insert the mineral wool plug into the penetration so that it fills the void evenly; compress the edges slightly to accommodate irregularities. Where required for code compliance or enhanced performance, apply a compatible sealant or mechanical fastening around the perimeter and follow any relevant firestopping system instructions. Ensure surfaces are clean and free of loose debris before installation to maximise contact and sealing effectiveness.
Usage recommendations
For optimal performance in fire-rated and acoustic applications, pair the mineral wool plug with manufacturer-recommended sealants or intumescent products and follow local building codes for penetration sealing. Store the plugs in a dry area and avoid prolonged exposure to moisture prior to installation.

## FAQ

### How much does the Insulation Plug Koelner KES-90/20-MW cost, and is it available for purchase?

The price is 228.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 47 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, Installment. All transactions are 100% secure and encrypted.

### Can Insulation Plug Koelner KES-90/20-MW be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Koelner 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 Koelner 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/11829148/67230028_large.webp