Eheim Professionel 4+ 250 External Filter – Smart Flow Control

The Eheim Professionel 4+ 250 combines precision engineering with advanced filtration technology, making it perfect for aquariums up to 250 liters. Designed for superior water clarity and long-lasting performance, this canister filter uses a multi-stage system to remove debris, neutralize toxins, and support healthy biological balance.

Equipped with Eheim’s patented “Xtender” function, it allows you to bypass clogged filter media temporarily, maintaining water flow until cleaning is possible. The silent yet powerful pump ensures consistent circulation, while the quick-release hose adaptors and priming system make setup and maintenance simple.

Key Features

• Ideal for aquariums up to 250L
• Xtender function extends cleaning intervals
• Multi-layer filtration for mechanical, chemical, and biological water treatment
• Energy-efficient, ultra-quiet motor
• Quick-release hose adaptors for effortless maintenance
• Durable construction for years of reliable use
• Compatible with both freshwater and marine setups

Specifications

• Aquarium size: Up to 250L
• Pump output: 950 L/h
• Filter volume: 3.5L
• Power consumption: 12W
• Dimensions: 238 × 244 × 358 mm

Usage
Fill the baskets with your chosen filter media, prime the unit, and adjust flow as needed. For best results, clean media in aquarium water to retain beneficial bacteria.