# Ink Cartridge Quantec for HP 21XL, 18 ml Black, compatible replacement

**URL:** https://aio.lv/en/product--quantec-atr-0646--11871099
**Data updated:** 2026-03-09 20:34 (EET)
**Category:** Inkjet Printer Cartridges
**Manufacturer:** Quantec
**Manufacturer code:** ATR-0646
**EAN:** 5903175325594
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 10.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--quantec-atr-0646--11871099

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Quantec ink cartridge designed as a compatible replacement for HP 21XL printers. Contains 18 ml of black ink (model ATR-0646 / EAN 5903175325594). Intended for monochrome printing tasks such as documents and text-heavy pages. Provides refill-capacity indication by volume and suits users seeking an alternative to OEM cartridges for everyday printing in home or small office environments.

## Long description

Quantec ink cartridge for HP 21XL is a compatible black replacement designed for monochrome printing. The cartridge contains 18 ml of black ink and is intended as an alternative to OEM HP 21XL cartridges for everyday document and text-heavy page printing in home and small office environments. It provides ink capacity measured by volume and fits printers that accept HP 21/21XL format cartridges.
Advantages
This compatible cartridge offers a cost-effective option for routine black-and-white printing with predictable ink volume of 18 ml. It is suitable for users who need reliable text clarity and consistent page output without depending on original manufacturer supply. The cartridge is designed to be straightforward to install and to deliver consistent monochrome density for documents, invoices, and letters.
Suitable for
 Printing text documents and letters
 Everyday home printing and study materials
 Small office monochrome reports and invoices
 Drafts, proofs, and internal documentation
Key specifications
 Ink colour: Black
 Ink volume: 18 ml
 Compatibility: Designed for printers accepting HP 21/21XL cartridges
 Print type: Monochrome documents and text-heavy pages
 Cartridge form: Compatible replacement cartridge
How to use
Remove the used cartridge according to your printer manufacturer’s instructions, unpack the Quantec cartridge and remove any protective tape or seal. Insert the cartridge into the correct slot until it clicks into place and close the printer cover. Perform a test print or nozzle check if available to confirm correct installation and print quality before starting larger print jobs.
Usage recommendations
Store the cartridge upright in a cool, dry place and avoid direct sunlight. If printing frequency is low, run periodic test prints to prevent nozzle drying. For best results use with paper suited for monochrome text printing and replace the cartridge when print density decreases or streaks appear.

## FAQ

### How much does the Quantec Ink Cartridge for HP 21XL, 18 ml cost, and is it available for purchase?

The price is 12.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 100 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 03.07.2026 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 Quantec 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 Quantec 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

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