RS 4000 Powerfull Hob Filter – Waterfall Style HOB Filter for Medium Aquariums

The RS Electrical RS-4000 is a hang-on-back (HOB) waterfall-style bio filter designed for medium to small aquariums. With its sleek and compact design, this filter delivers high-performance water purification while maintaining energy efficiency and silent operation. Suitable for both freshwater and marine tanks, it’s built with durable components and includes a biochemical filter plate with activated carbon to ensure clean, healthy water for your fish.

✅ Key Features:

• 🔄 Waterfall-Style 3-Stage Filtration: Includes sponge, biochemical plate, and carbon for effective mechanical, biological, and chemical filtration

• ⚙️ High-Performance Motor: Optimized motor and pump combination ensures efficient filtration with low power consumption

• 🔇 Ultra Quiet Operation: Designed to operate silently—ideal for home or office use

• 💦 Waterproof & Durable: Security seals ensure motor protection and long service life

• 🌿 Freshwater & Marine Compatible: Works well in both environments

• 🔧 Easy to Install & Maintain: Hang-on design with adjustable intake tube and leveling function

🐠 Benefits:

• Removes debris and dirt from aquarium water

• Improves water clarity and supports a healthier ecosystem

• Easy to assemble, clean, and maintain

• Stylish design that blends into any aquarium setup

⚙️ Installation Instructions:

1. Hang the filter on the back wall of your aquarium

2. Adjust the intake tube to your desired length (keep at least 4″ above the gravel)

3. Use the included leveler to ensure the filter is properly balanced

4. Make sure the tank’s water level is always above the filter motor to allow auto-priming

⚠️ Important Note:

If the power goes out, the RS-4000 motor will stop. When power returns, automatic priming will not resume, so you’ll need to manually restart the filter by filling it with tank water to restart the siphon.