# Filter Lid Gasket for Fluval FX Series (MPN FV-2104) — Replacement Seal A20210

**URL:** https://aio.lv/en/product--fluval-fv-2104--12058655
**Data updated:** 2026-03-12 19:42 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** Fluval
**Manufacturer code:** FV-2104
**EAN:** 015561302104
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 13.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fluval-fv-2104--12058655

## 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

Replacement gasket for Fluval external canister filter lids, compatible with FX series models (MPN FV-2104). This rubber seal (A20210) provides a secure watertight fit for the filter lid to prevent leaks and maintain proper pressure and suction. Ideal for routine maintenance or when replacing worn or damaged seals in aquarium filtration systems.

## Long description

Replacement gasket designed for Fluval external canister filter lids compatible with the FX series. This rubber seal restores the watertight connection between the lid and canister body, helping maintain proper pressure and suction for reliable filtration performance. The gasket fits into the lid channel to prevent leaks and is intended for routine maintenance or as a direct replacement when the original seal shows signs of wear, hardening, or damage.
Advantages
The gasket is made from durable rubber that resists compression set and maintains elasticity to ensure a consistent seal over repeated use. It provides a straightforward replacement option to restore the filter’s sealing integrity without requiring modifications to the housing. Using a correctly sized gasket reduces the risk of water leakage, preserves pump and motor performance by maintaining correct pressure, and supports overall aquarium filtration reliability.
Suitable for
Replacing worn or damaged lid seals on Fluval FX series external canister filters
Routine maintenance to prevent leaks and preserve filter performance
Home or professional aquarium setups using Fluval FX canister filters
Key specifications
Material: elastomeric rubber for resilient sealing
Form: circular/continuous gasket designed to sit in the lid seal channel
Function: watertight seal to maintain pressure and prevent leaks
Compatibility: designed for Fluval FX series external canister filter lids
How to use
To replace the gasket, remove the filter lid according to the manufacturer’s instructions and take out the old seal from the lid channel. Clean the channel and lid contact surfaces of debris, mineral deposits, and old adhesive residues if present. Fit the new gasket into the channel, ensuring it sits evenly and is not twisted or pinched. Reassemble the lid onto the canister and verify an even fit by hand-tightening any clamps or latches, then run the filter and check for leaks around the lid. If minor adjustments are needed, stop the filter, re-seat the gasket, and retest.
Usage recommendations
Inspect the gasket periodically during routine maintenance and replace it when signs of hardening, cracks, distortion, or persistent leakage appear. Use only compatible replacement seals for your Fluval FX series canister filter to ensure proper fit and function.

## FAQ

### How much does the Fluval FX Filter Lid Gasket FV-2104 cost, and is it available for purchase?

The price is 15.99 € (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 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/12058655/67544380_large.webp