# KM GROM KM50.8 PR Rectangular PVC Concrete Roof Holder for 8mm Wire

**URL:** https://aio.lv/en/product--km-grom-km508-pr--12454886
**Data updated:** 2026-05-18 02:49 (EEST)
**Category:** Home & DIY Accessories
**Manufacturer:** KM GROM
**Manufacturer code:** KM50.8 PR
**EAN:** 5900111500015
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--km-grom-km508-pr--12454886

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

The KM GROM KM50.8 PR is a rectangular concrete holder encased in durable PVC, specifically designed for securing 8mm lightning protection or grounding wires. This robust component ensures stable installation on flat surfaces, providing reliable support and spacing for conductors in professional electrical and lightning protection systems.

## Long description

The KM GROM KM50.8 PR is a professional-grade rectangular concrete roof holder encased in a durable PVC shell, engineered specifically for the secure mounting of 8mm lightning protection and grounding conductors. This component is designed to provide a stable and reliable foundation for wire routing on flat roof surfaces, ensuring that the lightning protection system remains correctly positioned and spaced according to industry standards.
Advantages
The primary benefit of this holder is its robust construction, which combines the weight and stability of a concrete core with the weather-resistant properties of a high-quality PVC housing. This design effectively protects the concrete from environmental degradation while ensuring the holder remains firmly in place on flat roofs without the need for invasive mounting methods. The rectangular shape provides a low profile and excellent surface contact, minimizing the risk of movement during high winds or temperature fluctuations.
Suitable for
Securing 8mm lightning protection conductors on flat roofs
Grounding system installations
Professional electrical infrastructure projects
Flat roof surfaces requiring non-penetrating mounting solutions
This holder may not be suitable for installations on steeply pitched roofs where the weight of the concrete block is insufficient to prevent sliding. Additionally, it is not intended for use with conductors that deviate significantly from the 8mm diameter specification, as this may result in an insecure fit.
Key specifications
Material: Concrete core with PVC casing
Compatibility: 8mm diameter wire
Shape: Rectangular
Application: Flat roof lightning protection
To install the holder, place it on the clean, flat surface of the roof at the required intervals determined by the lightning protection design plan. Once positioned, insert the 8mm conductor into the designated groove on the top of the holder. Ensure the wire is seated firmly to maintain the integrity of the system and prevent sagging or displacement over time.
What to consider before purchase
Verify the diameter of your conductor wire is exactly 8mm
Ensure the roof surface is flat and capable of supporting the weight of the concrete holders
Calculate the total number of holders required based on the spacing requirements of your specific lightning protection project
For optimal performance and safety, ensure that the spacing between individual holders does not exceed the recommendations provided by your local lightning protection installation standards. Regularly inspect the holders during routine roof maintenance to confirm they remain securely positioned.

## FAQ

### How much does the KM GROM KM50.8 PR Concrete Wire Holder cost, and is it available for purchase?

The price is 5.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6137 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 10.07.2026 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 KM GROM 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 KM GROM 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/12454886/68757282_large.webp