- 1x DRAIN Pump Pipe Adapter
- 1x Pressure Water Pump 30
- 1x Cycle Timer
- 1x AERO/RAIN Header Pot Complete 36L
- 21x AERO/RAIN Pot 15L
- 1x Silver Lid
- 21x RAIN Lid Cover
- 21x RAIN Lid
- 42x RAIN Lid Clip
- 1x Header Pot Blank
- 42x Pot Stand for 15L Pot
- 21x RAIN Fabric Pot 15L
- 21x Drain Cover - Copper
- 2x Elbow 50mm Barbed
- 1x Tee 50mm Barbed
- 3x Elbow 50mm Dual Flow
- 19x Tee 50mm Dual Flow
- 22x Washer 50 X 64mm
- 22x Nut 50mm Dual Flow
- 12x Clamp Size 2
- 8x Clamp Size 3
- 3x Valve 16mm Green
- 3x Plug - 16mm
- 42x Tee 16mm - 4mm
- 21x Pot Clip 16mm
- 1x Tee 25mm Barbed - 3/4" Male
- 2x Tee 25mm Barbed
- 2x Elbow 25mm Barbed - 3/4" Male
- 2x Elbow 19mm Barbed
- 2x Elbow 40mm Barbed
- 1x Siphon Tee 19mm Fitting
- 1x Siphon Tee 40mm Complete
- 14x Pipe 16mm Silver Bulk by Meter
- 4x Pipe 19mm Black Bulk by Meter
- 3x Pipe 25mm Blue Bulk by Meter
- 4x Pipe 40mm Silver Spiral Bulk by Meter
- 9x Pipe 4mm Green Bulk by Meter
- 12x Pipe 50mm Silver 100cm Piece
- 1x Wrench 50mm
- 1x Pipe Cutter 50mm
- 1x RAIN Instructions
- 1x JET-STREAM DRAIN Water Pump 1100GPH
- 1x JET-STREAM DRAIN Water Pump Power Adapter
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Alien Hydroponics RAIN System - 21 Pot 3 Row Kit
starting from 0% interest financing from
/mo.
- Automated nutrient delivery for 21 pots across a 3-row footprint
- Dual-Flow fittings and copper-plated covers prevent root clogs
- Requires an external reservoir like the Alien 70 Gallon tank
- 1-year manufacturer warranty
- View More Details
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VOLUME PRICING
Commercial & Bulk Purchasing
We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
Who This Is For
- You are moving to a rain-style delivery because your current top-feed setup leaves dry spots and uneven nutrient zones.
- You are installing a glue-free system because you need to quickly reconfigure or clean the layout between crop cycles.
What We Found
- The silver polymer pipes actually keep the water cooler than black tubing by reflecting heat in the grow room.
- The glue-free design simplifies things when you need to reconfigure rows or deep clean between harvest cycles.
- We suggest sizing up your reservoir because a 21-pot system drinks much faster than most growers anticipate.
What Users Say
- Users who moved to the RAIN system say the overhead delivery stopped the salt buildup they saw with drip emitters.
- Growers tell us the copper drain covers actually work to stop roots from choking out their return lines.
- Operators say the snap-on fittings made adding or moving rows much faster than working with glued PVC connections.
Alien Hydroponics RAIN System - 21 Pot 3 Row Kit
Achieving uniform nutrient distribution in a high-capacity grow is no easy feat. The Alien Hydroponics RAIN System - 21 Pot 3 Row Kit solves this by mimicking natural rainfall, delivering oxygen-rich nutrients directly to each plant's root zone. This unique top-feed approach ensures that every plant in your setup receives a consistent, oxygenated feed, effectively eliminating stagnant water and nutrient imbalances.
Whether you are managing a large-scale facility or a professional private grow, this system is built for performance and scalability. For those requiring even more coverage, the RAIN system can be expanded to a 36 Pot 4 Row Kit. If you prefer a deep water culture approach instead of top-feeding, consider the Alien Hydroponics RDWC 28 Pot 4 Row system. Designed for versatility, the RAIN kit works with various growing mediums while preventing root rot and salt buildup. Its glue-free, snap-on design means you can spend less time on assembly and more time on your harvest. For slightly larger setups within the same footprint, explore the 24 Pot 3 Row Kit.
Please note: This system requires a nutrient reservoir to operate. A tank is not included with the kit. We highly recommend the compatible Alien GardenTank 70 Gallon reservoir to complete your setup.
What's Included
Features
🔄
Dual-Flow™ Fittings
Patent-pending side slots prevent root clogging while maintaining high flow rates.
🛡️
Copper Protection
Copper-plated drain covers naturally deter roots from entering the drainage network.
❄️
Heat Resistance
Silver polymer pipes reflect heat to keep nutrient solution temperatures stable.
⬆️
Raised Drainage
Sloped bases and raised grids ensure rapid water clearance and prevent waterlogging.
🧠
Rain Brain
Automated controller ensures consistent nutrient delivery on a precise schedule.
🛠️
Easy Setup
Threaded fittings and snap-on pipes allow for a tool-free, glue-free assembly.
💪
Durable Build
Non-reactive, high-quality materials designed for longevity in professional environments.
📐
Customizable
Adjustable pot spacing and remote header options to maximize your growing space.
Specifications
| Specification | Value |
|---|---|
| Number of Pots / Rows | 21 Pots / 3 Rows |
| Min Size (Compact Header) | 111 3/8" x 43 1/4" (15L) / 132 1/2" x 52 3/4" (30L) |
| Max Size (Compact Header) | 178 3/4" x 100" (15L) / 218 7/8" x 115" (30L) |
| Min Size (Remote Header) | 115 3/8" x 43 1/4" (15L) / 136 3/8" x 52 3/4" (30L) |
| Max Size (Remote Header) | 218 1/8" x 100" (15L) / 258 1/4" x 115" (30L) |
| Water Pumps Included | Pressure Pump 30 & JET-STREAM DRAIN (1100 GPH) |
| Recommended Reservoir | Minimum 145 Gallons / 550 Liters |
Support & Manuals
Warranty
The ALIEN RAIN Top-Feed System is covered with a one-year manufacturer warranty for your peace of mind.
FAQs
Does this kit include a nutrient reservoir?
No, the reservoir is sold separately. For this 21-pot system, we recommend a minimum capacity of 145 gallons (550 liters) to ensure adequate nutrient supply.
What growing mediums are compatible with the RAIN system?
The RAIN system is highly versatile and works exceptionally well with soil, coco coir, or clay pebbles. Its design ensures uniform saturation and prevents nutrient lockout across all media types.
What is the recommended watering frequency?
Alien Hydroponics suggests a watering frequency of approximately one minute every hour. This mimics natural rainfall patterns and maintains high oxygen levels in the root zone.
Is the system difficult to assemble?
No. The system features a glue-free, snap-on design with threaded fittings and easy-to-use pipe cutters, making assembly straightforward for both beginners and professionals.
Can I expand this system later?
Yes, the modular design of Alien Hydroponics systems allow you to scale up to 36 pots or reconfigure your layout as your grow space needs evolve.
Happy To Help
Questions About This Product?
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
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