Fluval AquaClear 20 Hang On Filter - 379lph

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Product details

Management number	235211604	Release Date	2026/07/02	List Price	$35.60	Model Number	235211604
Category	Hang On Filter General

Description

Fluval AC Series filters deliver unparalleled cleaning power, improved media efficiency, whisper-quiet operation and enhanced durability – a legacy of excellence evolved.

4-stage filtration for superior water clarity and quality

A newly calibrated water path cycles through 4 complete filtration stages to optimize cleaning performance.
All media included.

CycleGuard beneficial bacteria support helps preserve the nitrogen cycle

CycleGuard maintains your aquarium’s biological balance and prevents nitrogen cycle disruptions. By allowing 1 of the 3 media inserts to be changed at a time, bacteria levels remain stable, supporting continuous and effective biological filtration without harmful fluctuations.

Redesigned easy-access media basket and all-new intake sponge

Patented Refiltration System

This unique feature permits flow rate adjustment without compromising filtration efficiency. When flow is reduced, the system will process up to 50% of the water several times within the chamber, ensuring a cleaner and healthier aquarium with exceptionally clear water.

Features:

Sound-Dampening Cover - minimizes eco chamber effect
Precision motor design - re-engineered rotor configuration enables smoother rotations, reduced vibration and quieter operation (AC20/AC30/AC50/AC70 models only)
Filter to tank stepped interface - self-leveling in most cases for convenient installation. Prevents water spills (AC20/AC30/AC50/AC70 models only)

Wide Media Selection

Discover Fluval’s complete range of authentic media solutions, offering higher quality, consistency and effectiveness to help support the overall health of your filter and fish.

In addition to a standard 3 year warranty, Fluval AC Series owners are offered an additional 2 years of coverage (at no charge) upon successfully registering their purchase.