Aqua Source 4mm Black PVC Hose – 30m Roll

Flexible Black PVC Hose for Aquarium, Pond, Aeration, and Water-System Connections

The Aqua Source 4mm Black PVC Hose is a flexible and practical small-diameter hose designed for aquarium, pond, water-feature, aeration, and general equipment-connection applications. Supplied in a generous 30-metre roll, it provides enough tubing for multiple installations, replacement sections, or longer continuous runs without requiring several short pieces to be joined together.

Its black appearance provides a neat and discreet alternative to clear tubing. The darker finish helps the hose blend naturally into pond surroundings, aquarium backgrounds, filtration areas, equipment cabinets, and landscaped water features. This makes it particularly suitable for installations where visible transparent tubing may distract from the overall appearance of the system.

The compact 4mm size is designed for small fittings, air lines, aeration equipment, air stones, pumps, valves, connectors, and other compatible aquatic-system components. It can be used to create flexible routes between equipment positioned around an aquarium, pond, filter system, fountain, or decorative water feature.

Because the hose is supplied as a continuous 30-metre roll, users can cut individual sections to the exact length required for each installation. This helps reduce unnecessary waste, limits the number of connectors needed, and allows a cleaner and more organised plumbing or aeration layout.

The flexible PVC construction makes the hose easy to guide around equipment, through cabinets, behind tanks, along pond edges, and into confined spaces where rigid pipework may be difficult to install. It can be positioned around gentle corners and obstacles while creating a convenient connection between compatible equipment.

The smooth internal passage provides a simple route for the movement of air or water through the hose. This makes it suitable for aquarium aeration, pond air systems, small water-circulation arrangements, fountains, drainage lines, and other low-volume applications that require compact flexible tubing.

Black hose can also be useful in outdoor aquatic installations because it creates a less noticeable connection between pond equipment and surrounding landscaping. When routed carefully, it can help maintain a cleaner visual appearance around pumps, filters, air systems, ornaments, and water features.

Whether it is being used to connect an aquarium air pump, supply air to an air stone, create a small water line, replace existing tubing, or complete a pond equipment installation, the Aqua Source 4mm Black PVC Hose provides a simple and versatile solution.

Features

• Flexible black PVC hose for aquatic and general connection applications
• Discreet black finish that blends into ponds, aquariums, and equipment areas
• Compact 4mm size for compatible small fittings and connections
• Suitable for carrying air or water in appropriate systems
• Easy to route around equipment and through confined spaces
• Can be cut to the exact length required
• Continuous roll helps reduce unnecessary joins
• Suitable for aquarium and pond aeration systems
• Useful for pumps, air stones, fountains, and water features
• Supplied in a convenient 30-metre roll
• Aqua Source branded product

When to Use

• Connecting aquarium air pumps to air stones
• Creating pond aeration and airline connections
• Replacing worn, damaged, or unsuitable 4mm tubing
• Routing hose behind aquariums or inside equipment cabinets
• Connecting compatible small pumps, valves, and fittings
• Creating discreet hose runs around pond landscaping
• Fountain and decorative water-feature installations
• Small water-circulation or drainage arrangements
• Installations where black tubing is preferred over transparent hose
• Projects requiring several cut-to-length hose sections

How It Works

The hose is measured and cut to the required length before being connected to a compatible 4mm fitting, air pump, air stone, valve, outlet, or other aquatic-system component.

Air or water then travels through the internal passage of the hose to the connected equipment. Its flexible construction allows it to be routed around obstacles and positioned according to the layout of the installation.

For a secure and reliable connection, the hose should be used with correctly sized fittings. Suitable connectors, clips, valves, or adaptors may be required depending on the equipment and application.

Avoid stretching the hose over fittings that are significantly larger than the intended connection size, as this may weaken or damage the tubing.

Product Specifications

Brand: Aqua Source
Product Name: 4mm Black PVC Hose
Product Type: Flexible PVC hose
Hose Size: 4mm
Roll Length: 30 metres
Material: PVC
Colour: Black
Format: Continuous cut-to-length roll
Suitable Applications: Aquariums, ponds, air systems, air stones, pumps, fountains, water features, and general air or water connections

Ideal For

• Aquarium airline systems
• Aquarium air-pump connections
• Air stones and aeration equipment
• Pond aeration systems
• Small pump connections
• Filter and equipment installations
• Decorative fountains
• Garden water features
• Discreet outdoor hose routing
• General air and water-transfer applications
• Long installations requiring flexible tubing
• Multiple small cut-to-size connections