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-11%
Spider Farmer Dehumidifier for Plants
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Spider Farmer Dehumidifier for Plants
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Home Grow Kits Dehumidifier Bundle Sale丨Spider Farmer GGS Controller with 32 Pint Dehumidifier – Smart Humidity Control, WiFi & Bluetooth Connectivity for Grow Tents and Rooms
Spider Farmer® New Arrival 5-Pack 5-Gallon Reusable All-Mesh Filter Bags | with Filter Screen and Storage Pouch | 25-220 Micron for Hydroponic Vegetables, Herb, Tea, Coffee and Ice Filtration $36.99 Original price was: $36.99.$24.99Current price is: $24.99.
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[NEW ARRIVAL] 2026 Spider Farmer® G1200W WiFi & Bluetooth App-Controlled Dimmable Cost effective Full Spectrum High Yield Commercial LED Grow Light for 4X6FT Grow Tent $839.99 Original price was: $839.99.$797.99Current price is: $797.99.

Bundle Sale丨Spider Farmer GGS Controller with 32 Pint Dehumidifier – Smart Humidity Control, WiFi & Bluetooth Connectivity for Grow Tents and Rooms

$269.99 Original price was: $269.99.$239.99Current price is: $239.99.

Dehumidifier Grow Options
Dehumidifier
$239.99 Dehumidifier+GGS Controller Kit
$259.99 Dehumidifier+GGS AC5 Power Strip Kit

5% Special Coupon for this set: GST05

New Upgrade: Spider Farmer GGS App Controller + Dehumidifier Combo Now Available!

The kit includes:

  • 1 x 32-pint dehumidifier and its accessories, such as RJ12 cable, power supply, and other fittings
  • 1 × GGS controller (with power supply)
  • 1 × GGS temperature and humidity sensor
  • 1 × GGS light adapter (for connecting the lights to the GGS System)
  • 1 × GGS Pro adapter (10 ports for expanding connections)
  • 4 × 2.5m RJ12 cables (for connecting devices)
  • 2 × 0.25m RJ12 cable
  • 4 x hook and loop straps (for organizing cables)

Fast Shipping

Same day delivery, 3-8 business days for the product to reach you.

After-Sale Service

Up to 5 years warranty. Best customer service.

The Cyber Monday sale will end on December 8nd.

Fit Guide

Check the following fit chart to find how many lights you need for your grow tent. For Bigger Growing Space, SF4000 / SF7000 / SE5000 / SE7000 will be more suitable.

SF SERIES
SF Tent Size # of SF1000 # of SF2000 # of SF4000 # of SF7000 SF FAN COMBO
2’x2’ 1 / / / 4 inch
3'x3' 1 1 / / 4 inch
4.5'x2' 2 1 / / 4 inch
4'x4' 4 2 1 / 6 inch
5'x5' 6 3 1 1 6 inch
SE SERIES
SF Tent Size # of SE3000 # of SE5000 # of SE7000 # of SE7000-730w SF FAN COMBO
2’x2’ 1 / / / 4 inch
3'x3' 1 1 / / 4 inch
4'x4' 1 1 / / 6 inch
5'x5' 2 1 1 1 6 inch
Size Guide
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Description

Is The Dehumidifier Compatible With GGS Controllers Or GGS AC5/AC10 Power Kits?

Yes, the dehumidifier is fully compatible with all GGS series models (including GGS controllers and AC5/AC10 power kits).

Instructions:
1. App Update: Starting July 9,2025, the latest version of the Digital Device app will include the new dehumidifier module.
2. Connection: Plug the RJ12 cable into the controller’s device port, and the app will automatically detect the dehumidifier.
3. Smart Control:  The app allows full control of the dehumidifier’s functions, including customizable timer settings for smarter operation.

Note:
*The dehumidifier must remain powered on for the app to recognize it.
*If using a GGS power kit, ensure the corresponding power button is always turned on.

What does a dehumidifier do?

When the air humidity exceeds the ideal range, a dehumidifier removes moisture from the air, reducing the humidity and ensuring your plants remain in an optimal environment. Excessive humidity can lead to bud rot and other molds, and can also slow plant growth.

What size dehumidifier do I need for my grow room?

This depends on how much water you use. Suppose you are growing 6 plants in a 4x4 grow tent, watering them every 2 days with 1 gallon (8 pints) per plant each time. You can calculate the dehumidifier size as follows:

Step 1: Calculate the total water used each time

  • 6 plants * 1 gallon/plant = 6 gallons

Step 2: Convert gallons to pints

  • 6 gallons * 8 pints/gallon = 48 pints

Step 3: Calculate the average daily dehumidification

  • 48 pints / 2 days = 24 pints/day

Step 4: Consider low temperature and low humidity areas (reduce by 15%)

  • Basic requirement: 24 pints/day
  • Adjusted requirement: 24 pints * 0.85 (estimate 15% reduction for low temperature and low humidity)
  • Adjusted requirement calculation: 24 * 0.85 = 20.4 pints/day

Step 5: Consider high temperature and high humidity areas (increase by 15%)

  • Basic requirement: 24 pints/day
  • Adjusted requirement: 24 pints * 1.15 (estimate 15% increase for high temperature and high humidity)
  • Adjusted requirement calculation: 24 * 1.15 = 27.6 pints/day

Why recommend a compressor dehumidifier over a semiconductor dehumidifier?

Compressor dehumidifiers are much more effective than semiconductor dehumidifiers, with a dehumidifying capacity 39 times greater. You may have previously purchased a semiconductor dehumidifier only to find it almost ineffective. This is why we recommend compressor dehumidifiers: they quickly process large volumes of air, provide better dehumidification, and are highly efficient.

What should the humidity be in a grow room?

While the key to successful growing is VPD (Vapor Pressure Deficit), generally, seedlings and clones require high humidity of 70-75%. As plants grow, gradually reduce humidity to 50-70%. During flowering, further reduce humidity to 40-50% and maintain this range until harvest.

All indoor growing systems benefit from a dehumidifier, but it is especially important for hydroponic systems. Proper ventilation also helps control humidity, so make sure to install fans or blowers.

Other factors to consider

If your room is sealed and equipped with an air conditioner, the air conditioner will remove some moisture. Check how many pints of moisture your air conditioner removes daily and subtract this amount from your daily dehumidification needs.

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Additional information
Dehumidifier Grow Options

$239.99 Dehumidifier+GGS Controller Kit

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WHY CHOOSE US

1. Customer Satisfaction and Quality Products
Spider Farmer is a reputable brand in indoor and hydroponic gardening. Its products are widely used by farmers, hobbyists, and professionals. The company's mission is to help people grow healthy and vibrant plants in any environment. Spider Farmer continuously works to enhance and expand its product range to meet the evolving needs of its customers.

2. Best Prices Guarantee
Spider Farmer is committed to providing the best prices online for all our products. When you shop with us, rest assured that you are receiving the best online prices.

3.Enjoy Free and Discreet Shipping Across the USA
Our company is pleased to provide complimentary shipping to nearly every state in the USA, utilizing trusted couriers such as FedEx, UPS, USPS, and other reliable shipping providers. We understand the importance of privacy and will ensure that your package arrives discreetly.

4. Commitment to Customer Care
At Spider Farmer, we take responsibility for ensuring that our customers are always satisfied with their purchase. If anything is wrong, we guarantee to make it right, and you can reach us via call, email or message, and we will respond in about 1 business day or less.

5.Hassle-Free Returns and Refunds
In case your purchase does not meet your standards, we offer a hassle-free 30-day refund and return policy. Refer to our full return policy for details.

6.Dependable Global Shipping
We offer international shipping for all our products via FedEx, UPS, USPS, DHL, and other reputable couriers. To obtain a shipping quote, please proceed to the checkout process or get in touch with our customer service team for further assistance.

7. Buy Now, Pay Later with PayPal

Time and flexibility are on your side. Get what you want and break the payments up over weeks or even months.

8. Secure Payment Methods

We accept major credit and debit cards, PayPal, and bank transfers, and all card payments are processed through our encrypted SSL security processing system, ensuring that your identity is always protected.

Spider Farmer is dedicated to providing high-quality products and exceptional customer service to ensure a happy growing experience for all our customers.

Related products

-9%

2026 New Spider Farmer® 32 Pint Dehumidifier – Smart APP Control with RJ12 Cable & Drain Hose, Ideal for Grow Tent & Grow Room

$219.99 Original price was: $219.99.$199.99Current price is: $199.99.
Rated 5.00 out of 5
New Version: SMART HUMIDITY CONTROL The dehumidifier connects to the GGS Power Strip AC5/AC10 and GGS Controller via an RJ12 cable, allowing remote control through Bluetooth or the Spider Farmer app. Seamlessly integrate with the Spider Farmer GGS Series for intelligent control of windspeed, runtime, and Auto Humidity Control. (Dehumidifier section updated in the app—check the latest version after July 9, 2025.) Looking for a better deal? >>Check out this one Please let the dehumidifier sit for 24 hours before use, as it contains a compressor. Spider Farmer Dehumidifier Manual & Operation Guide

Why Choose Our Compressor Dehumidifier Over Cheaper Options?

You may find dehumidifiers on the market priced at just a few dozen dollars, but most of those use semiconductor technology. Semiconductor dehumidifiers work by cooling air with a thermoelectric effect, but they are far less effective, especially in colder weather. Our dehumidifier uses a high-quality compressor, which comes at a higher cost but delivers far superior performance.

Why a Compressor Dehumidifier?

Semiconductor dehumidifiers simply can’t get the job done—especially in winter, as they struggle to operate efficiently in low temperatures. In contrast, compressor dehumidifiers are widely used in commercial settings for their effectiveness. In fact, our unit removes moisture up to 39 times faster than semiconductor models. That means faster results and lower energy consumption, saving you both time and money on electricity bills.

How Does It Work?

Our dehumidifier pulls in humid air, removes the moisture, and then releases the dry air back into your tent or space. The collected moisture can either be stored in the built-in water tank or drained continuously using the included hose. According to our tests, it may increase the temperature inside your tent by 1-2°C (around 2-4°F), a small trade-off for such efficient moisture removal.

Ideal for Summer Humidity Control

Summer humidity can be challenging, especially in grow tents where moisture can quickly build up, affecting both your plants' health and the growing conditions. This dehumidifier is designed to handle the increased humidity levels typical of summer, ensuring your environment remains stable and conducive to plant growth. With its ability to regulate humidity, you’ll avoid problems like mold and mildew, which thrive in high-moisture conditions.

User-Centered Design for Grow Tents

We understand our users’ needs, which is why this dehumidifier is specifically designed for tent environments. The dry air outlet pipe is tailored to fit seamlessly with tents, ensuring optimal airflow. It’s perfect for 2×2 ft (60×60 cm), 2×4 ft (60×120 cm), 2.3×4.6 ft (70×140 cm), 3×3 ft (90×90 cm), 4×4 ft (120×120 cm), and 5×5 ft (150×150 cm) tents. Whether you’re using a small or large tent, our dehumidifier adapts effortlessly to create the ideal environment.

User-Friendly Features

For added convenience, our dehumidifier comes with a power outage memory function. If the power goes out, it will remember its previous settings, ensuring a smooth restart. The dehumidifier retains these settings and will automatically turn back on when power is restored—no manual restart needed.

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Log in for Member Savings | Spider Farmer DWC Hydroponics Grow System with Top Drip Kit 7 Gallon Deep Water Culture with 8W Air Pump 2 Buckets

10$ OFF when logged in
$109.99
Rated 5.00 out of 5
New Triangle Cover Design: The innovative triangle cover design allows for easy access to add water and measure liquid parameters, improving overall ease of use. With a 7-gallon capacity, it’s made from high-quality, corrosion-resistant PP (polypropylene) material that is lightweight and durable. Top Irrigation System: Equipped with an adjustable top drip irrigation ring, this system lets you finely adjust the irrigation speed. The 6-inch net cup is made from high-strength PP material, making it incredibly tough and able to provide strong support for healthy, lush plants. Powerful Air Pump: The system includes a powerful air pump that operates at 120V/60Hz, consuming 8W of power with a maximum airflow of 4*63.4 GPH (adjustable). When used with air stones, it effectively delivers oxygen to plant roots, ensuring healthy root development and promoting strong growth for indoor plants. DWC Hydroponic System Kit Includes: 2x 7-gallon DWC buckets, 2x triangle covers, 2x net cups, air pump, 2x air stones, 6 meters of 4/6mm black tubing, dry clay pebbles, 2x water level tubes, 2x drip irrigation rings, user manual, and other accessories.

NOTE:

Each DWC hydroponic bucket has a top diameter of 31cm.

  • For 2 buckets placed side by side, a tent width of at least 70cm is recommended.

  • For 4 buckets placed side by side, a tent width of at least 90cm is recommended.

Please ensure your grow tent is spacious enough for proper airflow and easy maintenance.

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-17%
Spider Farmer 16L Humidifier - Efficient Indoor Air Moisturizer for Plant Growth

Sale | Spider Farmer® 16L Cool Mist Humidifier Ultrasonic with Temperature & Humidity Probe for Plants Indoor Grow Tent

$179.99 Original price was: $179.99.$149.99Current price is: $149.99.
Rated 4.75 out of 5
Versatile Application:
  • Tailored for large tent cultivation and commercial plant projects.
  • Ideal for creating the perfect growing environment in both extensive tent setups and commercial cultivation spaces.
Impressive Capacity and Precision:
  • Expandable hose disperses mist to the corner of the tent for thorough coverage.
  • Four adjustable mist levels with a maximum humidification capacity of 1400ML/H.
  • Independent sensor for precise humidity control.
Note: Ensure the humidity sensor is NOT placed near the mist outlet for accurate readings. User Manual Size:240*630mm
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-20%
4-Inch Carbon FIlter
Carbon filter for effective indoor air purification by Spider Farmer

Spider Farmer 4 Inch/6 Inch Air Carbon Filter Odor Control for Inline Ducting Fan

$39.99 – $64.99
Package Included: 1 xCarbon Filter, 1xPre-Filter .
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-10%
6-inline fan-Speed Controller-RJ12-SET
Inline Fan-GGS Controllable

Spider Farmer 6″ Inline Ducting Fan with Speed Controller & Carbon Filter Ventilation System for Grow Tents, GGS Controller Controllable

$189.99 Original price was: $189.99.$170.99Current price is: $170.99.
Rated 5.00 out of 5
  • Four operating modes can be selected
  • Set start & stop times
  • Set running & standby speeds
  • CO2 device On/Off control
Package Includes:  1×6″ Inline fan, 1×6″ Carbon filter, 1xSpeed Controller, 1xDucting, 1xTimer, 1xThermo-hygrometer, 4xSteel hangers, 2xDuct filter vent covers, 3xSteel clamps (GGS Controller Not Include)  
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-5%
4-inline fan-Speed Controller-RJ12-new
Inline Fan-GGS Controllable

Spider Farmer® 4″ Inch Inline Fan 205 CFM with Speed Controller RJ12 Port, Grow Tent Ventilation, GGS Controller Compatible

$83.99 Original price was: $83.99.$79.99Current price is: $79.99.
Rated 5.00 out of 5
An inline fan improves airflow, regulates temperature and humidity, and helps plants grow stronger. It removes hot, stale air from your grow space and brings in fresh air—creating a healthy environment for your plants to thrive. Perfect for Grow tents, hydroponic rooms, and other indoor growing setups that require quiet, reliable airflow with smart control options Package Includes:  1×4″ Inline fan, 1xSpeed Controller (GGS Controller Not Include)
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-14%
Spider Farmer Glowr80 LED grow light designed for optimal indoor plant growth and flowering, featuring advanced lighting technology.
Spider Farmer SF-Glowr40 LED grow light with red spectrum, beneficial for indoor plant growth and flowering.

Spider Farmer® GlowR80 80W Deep Red Spectrum 660nm Supplemental LED Grow Light for Indoor Plants,Hanging Plug in Grow Lamp for Hydroponic Greenhouse Plants Seedling Veg

$109.99 Original price was: $109.99.$94.99Current price is: $94.99.
Rated 5.00 out of 5
The SF-GlowR80 LED Grow Light (650-665nm) boosts photosynthesis during flowering and fruiting, ensuring strong plant growth. Wattage – 80W (40W Each Light Bar; 2 pcs) Light size: 3.22ft*0.15ft*0.12ft (1PCS) Max Daisy Chain Number: 8 Single Bars (110V)/ 16 Single Bars (220V) GlowR80 is Suitable for above 500W light as a reference. (SE7000 /G7000 /G8600 /G1000W / SE1000W/ SE1200W), it can also be horizontally or vertically hung separately for any grow space. Designed to fit most lights for added safety and ease of use.
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-10%
6 inch inline fan kits GGS controller-2509
Size of 6 inch inline fan-RJ12

Spider Farmer®6” Inline Fan Kits 402CFM with GGS Controller Carbon Filter & Ducting Combo Grow Tent Ventilation System

$209.99 Original price was: $209.99.$188.99Current price is: $188.99.
Rated 5.00 out of 5
  • Four operating modes can be selected
  • Set start & stop times
  • Set running & standby speeds
  • CO2 device On/Off control
The Spider Farmer Inline fan & carbon filters effectively remove unwanted odors, ideal for use in grow tents or enclosed grow areas. The Carbon Filters purify and filter out molds, spores, dust, pollen, odors, and other harmful particles. The temperature and humidity controller automates airflow, maintaining optimal growing conditions for better yields and healthier plants. It’s perfect for grow tents, hydroponic systems, and greenhouses. Package includes: 1pc 6-Inch inline fan, 1pc 6-inch carbon filter, 1xGGS controller (Do not include power supply, directly connect to the inline fan), 1xpre-filter, 1xducting, 2xduct filter vent cover, 4xsteel hangers, 3xclamps,  1x temperature and humidity sensor, 1×light adapter, 5x RJ12 cables, 1x RJ12 telephone line splitters
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