# Envelope C4 Sigel DU330 Transparent 25 pcs

**URL:** https://aio.lv/en/product--sigel-du330--1713853
**Data updated:** 2025-12-29 07:48 (EET)
**Category:** Envelopes
**Manufacturer:** sigel
**Manufacturer code:** DU330
**EAN:** 4004360829383
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 54.49 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 45.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigel-du330--1713853

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The Sigel DU330 envelope is a transparent C4 envelope (229 x 324 mm) designed for A4 documents. Each pack contains 25 envelopes, perfect for organizing and protecting your important papers. Made from high-quality materials, these envelopes ensure durability and a professional appearance, making them ideal for both personal and business use.

## Long description

Transparent C4 envelope made from special paper, designed to hold A4 documents (229 x 324 mm). The Sigel DU330 pack contains 25 peel-and-seal envelopes without a window, suitable for organizing and protecting important papers while maintaining a professional appearance.
Advantages
Transparent construction allows quick identification of contents without opening the envelope. The special paper offers a balance of durability and a neat finish. Peel-and-seal closure ensures fast and secure sealing without additional adhesive. Compatible with common office workflows and looks professional for business correspondence.
Suitable for
Mailing and storing A4 documents
Presentations, offers and business correspondence
Archiving and filing without opening the envelope
Office and home organisation of printed materials
Key specifications
Format: C4 (229 x 324 mm)
Material: transparent special paper
Closure: peel-and-seal (no window)
Quantity: 25 envelopes per pack
Brand: sigel, MPN: DU330, EAN: 4004360829383
How to use
Insert A4 documents directly into the envelope so they lie flat within the C4 format. Remove the protective strip from the peel-and-seal flap and press firmly to close. For mailing, ensure address and postage are applied to the outer surface. Avoid overfilling to maintain a secure seal and preserve the envelope shape.
Usage recommendations
Store envelopes flat in a cool, dry place to prevent creasing. For best results when printing addresses or labels, test compatibility with your printer type; these envelopes are suitable for inkjet and laser printers as well as copiers, but always verify feed settings and print tests before processing large batches.

## Specifications

| Feature | Value |
|---|---|
| Width | 230 mm |
| Product colour | Transparent |
| Length | 324 mm |
| Quantity per pack | 25 pc(s) |
| Window | No |
| Envelope format (ISO 269) | C4 (229 x 324 mm) |
| Paper format | A4 (210 x 297 mm) |

## FAQ

### How much does the Envelope C4 Sigel DU330 cost, and is it available for purchase?

The price is 54.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 08.07.2026 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. 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 sigel 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 sigel 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/1713853/64184981_large.webp