Flow Switch – Manual Flow Control Valve for Aquarium Filters

The Flow Switch is a compact, manual valve designed to give aquarists precise control over water movement in their filtration systems. It installs directly onto your aquarium tubing and allows you to easily adjust, restrict, or completely shut off water flow as needed. This is especially useful during maintenance, equipment cleaning, or when managing flow-sensitive aquascapes and livestock.

Constructed from durable, aquarium-safe plastic, the Flow Switch is suitable for both freshwater and marine environments and is built to withstand regular use without leaks or degradation.

Sizes Available:

• 12/16mm – Ideal for small to medium tanks using standard canister filters such as OASE, JBL, or EHEIM.
• 16/22mm – Suitable for larger aquariums or high-flow setups that require wider hose diameters.

Key Features:

• Manual Flow Control: Adjust water flow through your filter or inline equipment with a simple twist of the handle. Great for fine-tuning circulation or minimizing flow in sensitive areas of the tank.
• Quick Shut-Off: Instantly stop water movement when cleaning filters, replacing hoses, or servicing equipment—no need to disconnect the entire system.
• Versatile Applications: Can be used with external filters, CO₂ reactors, UV sterilizers, inline heaters, or return lines. Useful for both planted tanks and high-tech setups.
• Tool-Free Installation: Simply cut the tubing and insert the valve. Barbed ends grip securely to standard flexible hoses for a watertight seal without additional clamps or fittings.
• Durable Construction: Made from strong, chemical-resistant plastic with a sturdy lever that provides smooth, reliable operation over time.

Ideal For:

• Isolating parts of your plumbing during maintenance
• Managing flow to protect delicate plants, shrimp, or fish
• Controlling pressure through inline CO₂ or UV equipment
• Preventing backflow or siphon issues during filter cleaning
• Fine-tuning circulation in aquascapes or biotope-style tanks

Whether you're building a custom filter setup or just want an easier way to manage your system during cleaning, the Flow Switch offers a simple, effective solution for better control and peace of mind.