Mars Hydro 4" Refillable Carbon Filter – Premium Air Filter for Grow Tent Ventilation & Odor Control

The Mars Hydro 4-Inch Refillable Carbon Filter offers powerful, professional-grade odor control for stable and efficient grow tent ventilation. This high-quality air filter is filled with 100% Australian virgin charcoal , known for its exceptionally high absorption capacity and long lifespan.

Specially designed for use with 4-inch inline exhaust fans , this carbon filter is ideal for grow tents, grow rooms, hydroponic systems, and other closed indoor growing environments where clean, odor-free air is essential.

Thanks to its refillable design, reversible flange and included pre-filter, this model combines maximum flexibility, durability and long-lasting performance without compromising airflow or efficiency.

🌬️ Professional Odor Control for Indoor Growing

During the flowering phase, strong odors can develop that escape through ventilation systems without adequate filtering. The Mars Hydro 4” carbon filter neutralizes:

• Flower and plant scents
• Damp air and musty odors
• Air pollution in closed grow tents
• Unwanted emissions via extraction

The activated carbon effectively captures odour particles before they are removed outside through the ventilation system.

Refillable & Sustainable Design

Unlike standard disposable filters, this model features a refillable carbon filter system , which ensures:

• Lower maintenance costs
  
• Longer lifespan
  
• Sustainable solution for long-term indoor cultivation
  
• Consistent filtration performance

This makes the filter particularly suitable for serious hobby growers and professional indoor setups.

Reversible Flange for Maximum Flexibility

The reversible 4-inch flange allows for flexible installation within various ventilation configurations. This also extends the filter's lifespan by allowing it to be used evenly.

Fully compatible with:

• 4-inch inline fans
• 100mm extraction systems
• Standard ducting in grow tents

Including Pre-Filter

The included pre-filter protects the carbon material from dust, pollen, and larger particles. This keeps the activated carbon effective for longer and maintains optimal airflow.

Applications

This 4-inch carbon filter is ideal for:

• Grow tents up to medium size
• Hydroponic and DWC systems
• Indoor cultivation of vegetables, herbs and flowering plants
• Closed ventilation systems
• Professional odor control in indoor grow rooms

Specifications

• Product Name: Mars Hydro 4-Inch Refillable Carbon Filter
• Duct Size: 4 Inch (100mm)
• Filter material: 100% Australian virgin charcoal
• Design: Refillable + reversible flange
• Pre-filter: Included
• Compatibility: Suitable for 4-inch inline exhaust fans
• Uses: Grow tents, indoor grow rooms, hydroponics

Why Choose the Mars Hydro 4" Carbon Filter?

• Maximum odor control during the flowering phase
  
• High quality Australian activated carbon
  
• Refillable and cost-saving
  
• Optimal air purification without air flow loss
  
• Sustainable and professional design
  
• Perfect for 4-inch ventilation systems

The Mars Hydro 4-Inch Refillable Carbon Filter gives you complete control over air quality and odor management in your grow tent—essential for discreet, stable, and professional indoor growing.