WilTec SUNSUN HW-403B

Operation Manual
External Aquarium Filter
HW-302–304, 402B–404B, 403A, 404A
50192–50197, 50358, 50359
Illustration similar, may vary depending on model
Read and follow the operating instructions and safety information before using for the first time.
Technical changes reserved!
Due to further developments, illustrations, functioning steps and technical data can differ insignific -
antly.
Updating the documentation
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WilTec SUNSUN HW-403B Specifications

General

Model	HW-403B
Type	Canister Filter
Max Flow Rate	1200 L/h
Suitable for Aquariums	Yes
Filtration Stages	4
Hose Diameter	16/22 mm
Hose Size	16/22 mm
Number of Filter Baskets	3
Voltage	220 - 240 V
Frequency	50 Hz

Summary

Important Safeguards

Replacing the UV Light Tube

Technical Data

Operation and Troubleshooting

Troubleshooting Filter Operation

Noise Reduction and External Air Intake

Addresses noise issues and the intake of external air into the filter system.

Evacuating Air from the Filter System

Step-by-step guide for removing air from the filter system to ensure proper operation.

Resolving Filter Leakage Issues

Explains common causes of leakage, focusing on O-rings, and how to resolve them.

Filter Media Basics

Disposal Regulations