Keep your Fluval FX4 canister filter operating at peak performance with our complete range of genuine Fluval FX4 spare parts. Whether you're performing routine maintenance, replacing worn components or repairing your filter, you'll find the parts you need to keep your aquarium filtration system running reliably.

The Fluval FX4 is one of the most popular high-capacity canister filters available, and regular maintenance helps ensure optimal water quality, strong flow rates and long-term filter performance. Using genuine replacement parts helps maintain compatibility, reliability and efficiency.

Our range includes replacement impellers, motor components, hoses, hose connectors, AquaStop valves, media baskets, foam pads, seals, O-rings, clips and other essential Fluval FX4 replacement parts.

Popular Fluval FX4 Spare Parts

  • FX4 Impellers and Impeller Shafts
  • Motor Seals and O-Rings
  • AquaStop Valves
  • Ribbed Hoses and Hose Connectors
  • Filter Foam and Mechanical Media
  • Media Baskets
  • Intake and Outlet Components
  • Replacement Clips and Hardware

Why Use Genuine Fluval Parts?

  • Designed specifically for the Fluval FX4
  • Ensures correct fit and compatibility
  • Maintains optimal filtration performance
  • Helps extend filter lifespan
  • Easy installation and maintenance
  • Reliable long-term operation

Whether you're carrying out preventative maintenance or replacing damaged components, our genuine Fluval FX4 spare parts help keep your aquarium running smoothly.

Looking for parts for other FX Series filters? Browse our ranges of Fluval FX2 Spare Parts, Fluval FX4 Spare Parts and Fluval FX6 Spare Parts for additional replacement components and accessories.

Fluval fX2/FX4/FX6 Giant Rim Connector Suction Cups (4)
Fluval FX4/FX5/FX6 Giant Rim Connector Suction Cups (4) Keep your Fluval FX series filter running smoothly with the Fluval FX4/FX5/FX6 Giant Rim Connector with Suction Cups – 4 Pack. Designed as a genuine replacement part, this set ensures your filter...
$6.95
Fluval FX2/FX4/FX6 Giant Filter Lid O-Ring
Fluval FX4/FX5/FX6 Giant Filter Lid O-Ring Giant Filter Lid O-Ring to suit Fluval FX4, FX5 and FX6 canister filters Genuine Fluval Spare Part Part Number: A20210
$24.95
Fluval FX4 Magnetic Impeller Assembly
Fluval FX4 Magnetic Impeller Assembly A2028Genuine replacement Impeller for the Fluval FX4 Aquarium Filter Looking for parts for other FX Series filters? Browse our ranges of Fluval FX2 Spare Parts, Fluval FX4 Spare Parts and Fluval FX6 Spare Parts for additional replacement components and accessories.
$89.95
Sold Out
Fluval FX2 FX4 FX6 Intake Strainer Suction Cups
Fluval FX2 FX4 FX6 Intake Strainer Suction Cups 4pkThe Fluval suction cups are suitable for Fluval FX2 FX4  and FX6 High Performance Filters (A213, A214, A219). -Item A15041 -Genuine Fluval part Looking for parts for other FX Series filters? Browse...
$16.95
Fluval FX2 FX4 FX6 Intake Strainer
Fluval FX2 FX4 FX6 Intake StrainerStrainer is suitable for Fluval FX2 FX4  and FX6 High Performance Filters (A213, A214, A219). -Item A20221 -Genuine Fluval part Looking for parts for other FX Series filters? Browse our ranges of Fluval FX2 Spare Parts, Fluval...
$24.95
Fluval FX Canister Filter Purge Valve Hosing
The Fluval FX Utility Purge Valve Hosing is a genuine replacement hose designed for use with Fluval FX series canister filters, including the FX4, FX5 and FX6. This specialised hose connects to the filter’s utility purge valve, allowing convenient water...
$24.95
Fluval Ammonia Remover
Fluval Ammonia Remover Fluval Ammonia Remover is a natural ion-exchange media designed to remove toxic ammonia as water passes over it. Controlling ammonia levels reduces stress on fish. Use this product to provide a healthy environment when setting up a...
from $17.95
Fluval FX2/FX4/FX6 Giant Metal Hose Clamp (2)
Fluval FX4/FX5/FX6 Giant Metal Hose Clamp (2) 2 pack Giant Metal Hose Clamp to suit Fluval FX4, FX5 and FX6 canister filters Genuine Fluval Spare Part Part Number: A20234
$21.95
Fluval FX2/FX4/FX6 Giant Media Basket
Fluval FX4/FX5/FX6 Giant Media Basket Giant Media Basket to suit the Fluval FX4, FX5 and FX6 canister filters  Genuine Fluval Spare Part Part Number: A20239
$76.95
Fluval FX4-FX5-FX6 Intake Pipe Stem
Replacement Fluval FX Intake Pipe Suitable for: Fluval FX4 External Canister Filter (A214) Fluval FX5 External Canister Filter (A218) Fluval FX6 External Canister Filter (A219) One per pack Genuine Fluval Spare Part Fluval Spare Part Number -  A20225
$29.95
Fluval FX2 FX4 FX6 Giant Purge Valve
Fluval FX4 FX5 FX6 Giant Purge ValveFX Series Giant purge Valve for use with FX4, FX5 and FX6 high performance filters (A214, A218, A219). Genuine Fluval Part Part No. A20219 This product is part of our complete collection of Fluval FX6...
$36.95
Fluval FX4 Filter Output Nozzle
Fluval FX4 Filter Output Nozzle Replacement Fluval Output Nozzle specifically designed for the Fluval FX4 for maximum water pressure flow from nozzle Fluval FX4 External Canister Filter (A214) Includes 1 x Output Nozzle Easy to replace Genuine Fluval Spare Part...
$26.95

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