# VENTS GRM550X550 Gravity External Louver Shutter for Ventilation Fan, Grey

**URL:** https://aio.lv/en/product--vents-grm550x550--12444818
**Data updated:** 2026-05-18 02:46 (EEST)
**Category:** Ventilation Filters
**Manufacturer:** VENTS
**Manufacturer code:** GRM550X550
**EAN:** 4824032050590
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 75.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 62.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--vents-grm550x550--12444818

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The VENTS GRM550X550 is a gravity-operated external louver shutter designed for ventilation systems. This grey shutter automatically opens when the fan is running and closes when it stops, preventing backdrafts and protecting the duct from external elements. It is suitable for wall mounting in industrial or residential ventilation setups, ensuring efficient airflow management and weather protection.

## Long description

The VENTS GRM550X550 is a gravity-operated external louver shutter designed to enhance the efficiency of ventilation systems. This grey shutter is engineered to mount on the exterior of a building, providing a reliable barrier against backdrafts and environmental elements. The mechanism is fully automatic, utilizing the airflow generated by the ventilation fan to open the louvers during operation and allowing them to close securely via gravity once the fan is switched off.
Advantages
The primary benefit of this gravity shutter is its simple yet effective design, which requires no electrical connection or complex maintenance. By preventing air from flowing back into the duct when the fan is inactive, it helps maintain indoor climate control and prevents heat loss. The durable construction ensures long-term resistance to weather conditions, while the grey finish provides a neutral aesthetic suitable for various building facades. Its lightweight design facilitates straightforward installation on exterior walls.
Suitable for
Industrial ventilation systems
Residential exhaust ventilation
Commercial building air extraction
Wall-mounted fan protection
When it may not be suitable
This product is not designed for use in high-pressure ventilation systems where the airflow might be insufficient to lift the gravity-operated louvers. It is also not intended for ceiling mounting, as the gravity mechanism requires a vertical orientation to function correctly.
Key specifications
Dimensions: 550 x 550 mm
Operation: Gravity-actuated
Color: Grey
Mounting: Exterior wall
Function: Backdraft prevention
How to use
To install the shutter, ensure the mounting surface is flat and capable of supporting the unit. Secure the frame to the exterior wall surrounding the ventilation duct opening, ensuring the louvers are oriented to open outwards. Verify that the shutter is perfectly level to allow the gravity mechanism to operate smoothly without obstruction. Once installed, test the fan to confirm that the louvers open fully under the air pressure and close completely when the fan is turned off.
What to consider before purchase
Verify the dimensions of your existing fan or duct opening to ensure compatibility.
Ensure the installation location is accessible for mounting.
Confirm that the wall surface is suitable for exterior hardware attachment.
Usage recommendations
Regularly inspect the louvers to ensure they remain free of debris, dust, or ice buildup, which could hinder the gravity-closing mechanism and affect the performance of your ventilation system.

## FAQ

### How much does the VENTS GRM550X550 Gravity External Louver Shutter cost, and is it available for purchase?

The price is 75.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 14.07.2026 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 VENTS GRM550X550 Gravity External Louver Shutter 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 VENTS 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 VENTS 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/12444818/68748047_large.webp