# UVC In-Line Clarifier Fluval, 16×14×6.5 cm, 3 W, for up to 400 L flow

**URL:** https://aio.lv/en/product--fluval-fv-1981--12103371
**Data updated:** 2026-03-20 09:53 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** Fluval
**Manufacturer code:** FV-1981
**EAN:** 015561101981
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 63.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 52.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fluval-fv-1981--12103371

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Fluval UVC In-Line Clarifier is a compact ultraviolet clarifier sized 16×14×6.5 cm with a 3 W UVC lamp designed for installation into external aquarium plumbing. It treats up to 400 litres of circulating water to reduce free-floating algae, bacteria and pathogens. Suitable for hobby aquariums and ponds, it provides inline sterilization without changing tank layout and fits standard tubing connections for continuous water clarification.

## Long description

Fluval UVC In-Line Clarifier is a compact ultraviolet clarifier measuring 16×14×6.5 cm with a 3 W UVC lamp, designed to be installed directly in external aquarium plumbing. The unit treats up to 400 L of circulating water and targets free-floating algae, bacteria and common waterborne pathogens. Its inline design enables sterilization of water without altering the aquarium layout and is compatible with standard tubing connections for continuous clarification.
Advantages
The clarifier delivers continuous ultraviolet treatment in a small, easy-to-integrate housing that fits typical external filter lines. With a low-power 3 W UVC lamp it provides effective reduction of green water and microbial load while remaining energy-efficient. The inline configuration keeps the unit out of display space and simplifies installation and maintenance compared with standalone sterilizers. The compact dimensions make it suitable where space is limited, and its construction is intended for regular aquarium and small pond use.
Suitable for
Freshwater and marine hobby aquariums with external plumbing
Small garden ponds and circulating water systems
Situations requiring reduction of free-floating algae (green water)
Supportive control of bacteria and waterborne pathogens in recirculating systems
Key specifications
Body dimensions: 16 × 14 × 6.5 cm
UVC lamp power: 3 W
Designed treatment capacity: up to 400 litres of circulating water
Inline installation for connection to external plumbing/tubing
Intended application: continuous water clarification and sterilization
How to use
Install the clarifier into the external return or filter plumbing according to the flow direction marked on the unit, ensuring secure tubing connections and leak-free fittings. Operate the UVC lamp while water circulates through the clarifier; maintain recommended flow rates for best clarification performance and avoid running the lamp dry. Periodically check the lamp and quartz sleeve (if applicable) and replace the UVC bulb at the manufacturer’s suggested interval to maintain effective output.
Usage recommendations
Use the Fluval UVC In-Line Clarifier in systems where mechanical and biological filtration remain active; UVC treatment reduces free-floating algae and microorganisms but does not replace routine filtration maintenance or water quality control. For optimal results, match the flow rate to the unit’s recommended range, keep tubing clean, and replace the UVC lamp on schedule.

## FAQ

### How much does the UVC In-Line Clarifier Fluval, 16×14×6.5 cost, and is it available for purchase?

The price is 63.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 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 06.07.2026 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 Fluval 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 Fluval 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/12103371/67634933_large.webp