Mars Hydro 4" Filter Kit CP Inline Fan Carbon Filter Kit | 26.8 dB-A EC Motor

Quick Spec: 205 CFM | 26.8 dB-A | EC Motor | PWM Speed Control | 27 W ±5% | 110~240 VAC | IP44 | Digital Thermostat Controller | 1050+ Australian Activated Charcoal | 25-ft Flexible Duct Tube

Precision Control in Any Space

The enemy is not heat — it is the lag between when heat builds and when your system responds. In a sealed cultivation environment, that lag is where variance lives. A fan running at fixed speed regardless of ambient temperature creates thermal swings that stress plant physiology during critical development windows. A carbon filter that was never matched to the fan's actual CFM output either starves the scrubbing media of contact time or creates back-pressure that chokes airflow entirely. Manual speed controllers introduce a different failure mode: the operator who adjusted the dial last week is not in the room today, and the environment is running on yesterday's settings. These are not edge cases — they are the default operating condition for any ventilation setup assembled from unmatched components, and the cost is paid in inconsistent output cycle after cycle.

After deployment, the environment manages itself. The digital thermostat controller reads ambient temperature and triggers fan speed automatically — when the canopy zone heats up, airflow increases; when temperature stabilizes, the system throttles back. The carbon filter runs continuously in matched configuration, pulling every cubic foot of air through 1050+ activated charcoal granules sourced from Australia before it exits the space. The operator sets the parameters once and monitors outcomes rather than chasing conditions. Thermal variance narrows. Odor containment becomes a system property, not a manual task. The cultivation environment behaves predictably across every cycle.

The mechanism behind that stability is an EC motor operating at 3000 ±10% RPM with PWM speed control, moving 205 CFM against 347 ±10% Pa of static pressure — enough to overcome the resistance of a properly loaded carbon filter without sacrificing airflow volume. At 26.8 dB-A, the motor operates below the threshold where acoustic interference becomes a facility management concern. Input power is rated at 27 W ±5% with a maximum draw of 0.4A at 110~240 VAC / 50/60 Hz, making the system compatible with standard facility circuits without dedicated electrical infrastructure. The IP44 rating provides protection against particulate ingress and moisture splash in humid cultivation environments. The 25-ft flexible duct tube provides routing flexibility across the full range of compatible tent configurations. In practical terms, the Mars Hydro 4" Filter Kit CP delivers 205 CFM of thermostat-controlled, carbon-scrubbed airflow across 2x2 to 3x3 cultivation environments at 27 W ±5% continuous draw.

Where This Belongs (and Doesn't)

Electrical note: This system operates at 110~240 VAC / 50/60 Hz and draws a maximum of 0.4A. No dedicated circuit is required for single-unit deployment. For multi-unit installations sharing a single circuit, verify total amperage draw against breaker capacity before energizing. All electrical connections must comply with applicable local codes. Consult a licensed electrician for permanent or multi-unit installations.

How It Works

The EC motor at the core of this system is the operational differentiator between this kit and assemblies built around AC induction motors. EC (electronically commutated) motors use permanent magnet rotors and electronic commutation to achieve variable speed control with significantly lower energy waste at partial load — the motor draws only the power required to maintain the set airflow rate, not a fixed wattage regardless of demand. PWM (pulse-width modulation) speed control allows the digital thermostat controller to modulate fan speed in response to real-time temperature readings rather than switching between fixed speed steps. The result is continuous, proportional airflow adjustment rather than binary on/off cycling.

The carbon filter is constructed around a core of 1050+ activated charcoal granules imported from Australia. Activated charcoal sourced for filtration applications is characterized by high surface area per gram — the activation process creates a porous internal structure that maximizes the contact area between passing air molecules and the adsorption media. The filter housing is sized and rated to match the 4" fan's 205 CFM output, ensuring that air velocity through the media bed is within the effective adsorption range rather than passing through too quickly for adequate contact time. The mesh open area of the fan intake is rated at 53%, which maintains airflow volume while providing particulate pre-filtration before air reaches the carbon bed.

The digital thermostat controller provides the automation layer that converts this from a passive ventilation assembly into a responsive environmental management system. The operator programs target temperature thresholds; the controller monitors ambient conditions and modulates fan speed via PWM signal to maintain those thresholds without manual input. The controller dimensions are 30.2 x 16.3 x 9.7 cm. The fan unit dimensions are 11.9 x 6.4 x 3.8 inches. Operating temperature range for the full system is -20~60°C (-4~140°F), covering the full range of ambient conditions encountered in enclosed cultivation environments. The IP44 rating confirms protection against solid object ingress greater than 1mm and water splash from any direction — relevant in high-humidity cultivation environments where condensation and irrigation overspray are routine. In practical terms, the Mars Hydro 4" Filter Kit CP delivers EC-motor-driven, PWM-modulated airflow at 205 CFM and 26.8 dB-A with thermostat-automated speed control and continuous activated charcoal scrubbing across the full 2x2 to 3x3 compatible footprint.

System Integration

• Duct Routing: 25-ft flexible duct tube included — sufficient for routing from filter through fan to exterior exhaust port across all compatible tent sizes without additional duct purchase.
• Mounting Hardware: 2 hanging straps and 3 duct clamps included. No additional mounting hardware required for standard tent-rail installation.
• Controller Placement: Digital thermostat controller (30.2 x 16.3 x 9.7 cm) requires accessible placement for temperature probe positioning — locate probe at canopy level for accurate thermal feedback to the PWM control circuit.
• Circuit Load: Maximum draw of 0.4A at rated voltage. Compatible with standard 15A or 20A circuits. Multiple units on a shared circuit should be load-calculated before energizing.
• Filter Replacement Cycle: Activated charcoal media has a finite adsorption capacity. Monitor odor breakthrough as the primary indicator for filter replacement. Replacement cycle will vary based on canopy density, VOC load, and airflow rate.

Facility Integration Data

The following ROI reference table is provided for operators evaluating multi-unit deployment across scaled facility configurations. All figures are based on published electrical specifications (27 W ±5% per unit) and current pricing. Energy cost calculations use $0.12/kWh as a reference rate — adjust for your facility's actual utility rate.

Operator Field Notes

• Thermostat probe placement is critical: Position the temperature probe at canopy level, not at the fan intake or near the tent wall. Probe placement at the wrong elevation will cause the controller to respond to ambient air temperature rather than the thermal condition the canopy is actually experiencing.
• Match duct clamp torque to flexible duct material: Over-tightening clamps on flexible duct tube collapses the inner liner and reduces effective duct diameter — this increases static pressure load on the fan and reduces delivered CFM below the 205 CFM rated output.
• Filter orientation matters: The carbon filter should be positioned so airflow passes through the media bed in the direction indicated by the manufacturer. Reverse-flow installation reduces contact time with the activated charcoal and degrades odor scrubbing efficiency.
• IP44 is splash-rated, not submersion-rated: The IP44 rating covers moisture splash and high-humidity environments. Direct water contact from irrigation systems or pressure washing should be avoided on the fan motor housing and controller unit.
• Monitor static pressure as filter loads: As the activated charcoal bed accumulates particulate over its service life, static pressure resistance increases. If fan noise increases or airflow volume appears reduced, inspect the filter media before assuming motor fault.
• Voltage range enables multi-facility deployment: The 110~240 VAC / 50/60 Hz operating range means this unit can be redeployed across facilities with different electrical infrastructure without requiring a replacement unit or voltage converter.

Operator FAQ

Shipping & Logistics

• Shipping Territory: Cannafull Spectrum Solutions ships within the contiguous 48 United States only. Orders outside this territory cannot be fulfilled.
• Lead Time: Standard processing and carrier transit times apply. Contact support@cannafullspec.com for current lead time estimates on single-unit and multi-unit orders.
• Returns: Returns are accepted subject to the conditions outlined in the Cannafull Spectrum Solutions Return Policy. Product must be in original, uninstalled condition with all included components to qualify for return consideration.
• Restocking Fee: Returns of non-defective items are subject to a restocking fee of up to 25% per our Return Policy. Review full terms at cannafullspec.com/pages/return-policy before ordering.

Questions about shipping, lead times, or order status: support@cannafullspec.com

What's in the Box

The following components are confirmed included with SKU MH-4Filterkit-CP-US-NEW-2507 per manufacturer source data:

• 4" Inline Duct Fan (EC motor, PWM speed control, 205 CFM, 26.8 dB-A)
• 4" Carbon Filter (1050+ Australian activated charcoal)
• Digital Thermostat Controller (30.2 x 16.3 x 9.7 cm)
• 25-ft Flexible Duct Tube
• 3 Duct Clamps
• 2 Hanging Straps

Note: Confirm all components against this list upon receipt before installation. Cannafull Spectrum Solutions cannot process missing-component claims after installation has begun. Packaging contents are subject to manufacturer revision without notice — this list reflects confirmed source data at time of publication.

Regional Compliance & Deployment Notes

• Electrical Code Compliance: Installation must comply with the National Electrical Code (NEC) and all applicable state and local electrical codes. The 110~240 VAC / 50/60 Hz rating covers standard U.S. residential and commercial circuit infrastructure. Verify receptacle and plug compatibility for your specific installation.
• IP44 Rating Scope: IP44 ingress protection is rated per IEC 60529 standards. This rating covers protection against solid objects greater than 1mm and water splash from any direction. It does not constitute waterproof or submersion-rated protection.
• Licensing Jurisdiction: Operators are solely responsible for ensuring that cultivation activities and facility configurations comply with all applicable state and local licensing requirements. Cannafull Spectrum Solutions does not provide compliance advisory services.
• Odor Control Regulatory Context: Some licensed cultivation jurisdictions require documented odor mitigation systems as a condition of facility licensing. The activated charcoal filtration system in this kit may satisfy equipment-level odor control requirements — consult your licensing authority for specific documentation requirements.
• Shipping Jurisdiction: This product is available for shipment within the contiguous 48 United States only through Cannafull Spectrum Solutions.

Specifications, pricing, and availability are subject to change without notice. All technical data reflects manufacturer source information available at time of publication. Cannafull Spectrum Solutions makes no representations beyond confirmed manufacturer specifications. Verify all installation parameters with a licensed electrician and your applicable regulatory authority before deployment.