EHEIM professionel 4+ 350 2273020

EHEIM Professionel 4+ 350 (model 2273) is a professional-grade external filter from the German brand EHEIM for freshwater aquariums of about 180–350 litres. It combines effective mechanical, biological and chemical filtration in a single quiet, energy-efficient canister filter that keeps your aquarium water clear and healthy.

The Professionel 4+ 350 is especially suited to heavily stocked community and planted aquariums where filtration power and media volume must be sufficient. Thanks to the large 5-litre filter volume, beneficial bacteria have plenty of surface area and the maintenance interval stays long.

Features and benefits

• Xtender priming button: integrated priming automation makes restarting the filter after maintenance easier.
• Large filter volume (5.0 l): generous media basket space provides surface area for beneficial bacteria and stabilises the nitrogen cycle.
• Separate pre-filter (0.5 l): stops coarse dirt before the main media, so maintenance is fast and the main filter stays effective.
• Powerful pump (approx. 1,050 l/h): circulates the whole aquarium volume several times an hour and keeps the water moving.
• Extremely energy efficient (16 W): low consumption in continuous use keeps running costs down.
• Quiet operation: the ceramic shaft and precisely sized pump run unobtrusively even in a living room.
• Tap unit: the hoses detach in one movement for maintenance without water spills.
• Ready to use: supplied with quality EHEIM filter media, so the unit is ready to install right away.

Specifications

• Recommended aquarium size: approx. 180–350 litres
• Pump output: approx. 1,050 l/h
• Delivery head: approx. 1.8 m
• Power consumption: 16 W (50 Hz)
• Filter volume 5.0 l · pre-filter 0.5 l · canister 7.4 l
• Dimensions (W×H×D): 238 × 398 × 244 mm
• Filtration types: mechanical, biological and chemical

Use and tips

Place the filter in the aquarium cabinet below the tank and size the power generously so filtration is sufficient even in a heavily stocked tank. Rinse the biological media in aquarium water so the beneficial bacteria survive.

Frequently asked questions

How large an aquarium does the Professionel 4+ 350 suit?
It is designed for about 180–350 litre freshwater aquariums.

How often is the filter cleaned?
Typically every few months or when the flow weakens – rinse the biological media in aquarium water.

Akvaariokeidas is a Finnish aquarium specialist online store offering a wide selection of quality products with fast delivery and expert service. We are happy to help you choose the right product so your aquarium hobby runs effortlessly.