Hose for water, sera 45059, gray 12/16 mm, 2.5 m

The sera hose is a flexible gray water hose with inner/outer diameters of 12/16 mm and a length of 2.5 m, intended for aquarium and pond water connections, pump outlets and general low-pressure water transfer. Made from durable PVC that is free from harmful substances and elastic enough to form a secure connection to pumps, filters and other equipment.

Advantages

The hose offers good flexibility for easy routing and installation in confined spaces and resists kinking under normal use. Its PVC construction is durable for routine aquarium and pond applications and can be cut to length and secured with standard hose clamps. The neutral gray colour blends unobtrusively with most setups.

Suitable for

• Connecting aquarium or garden pond pumps to outlets
• Linking filters and external equipment with compatible 12/16 mm connectors
• General low-pressure water transfer and circulation

When it may not be suitable

Not intended for high-pressure systems, compressed air lines, or where food-grade certification is required. It is designed for low-pressure water applications typical of aquariums and ponds and should not be used with aggressive chemicals or very high temperatures that exceed PVC limits.

Key specifications

• Material: PVC (free from harmful substances)
• Inner diameter: 12 mm
• Outer diameter: 16 mm
• Length: 2.5 m
• Colour: gray
• Application: low-pressure water transfer for aquariums and ponds

How to use

Measure and cut the hose to the required length with a sharp knife or hose cutter. Slide appropriate hose clamps onto the hose ends, push the hose securely onto pump or filter connectors sized for 12/16 mm hose, then tighten the clamps to ensure a leak-free fit. Rout the hose to avoid sharp bends and keep it clear of heat sources and abrasive surfaces. For longer runs or rolls, secure the hose at intervals to prevent sagging.

What to consider before purchase

• Ensure connectors on your pump or filter are compatible with 12/16 mm hose dimensions
• Confirm application is low-pressure water transfer and not high-pressure or chemical use
• Decide if the 2.5 m length is sufficient or if additional hose or a roll is required

Usage recommendations

For reliable operation, use stainless-steel or corrosion-resistant hose clamps, avoid sharp bends and replace the hose if it becomes stiff, cracked or discoloured from prolonged exposure to sunlight or heat.