Alien Hydroponics RAIN System - 16 Pot 4 Row Kit
- Dual pumps provide 1100 GPH flow to ensure even distribution to 16 pots
- Copper-plated drain covers naturally repel roots from the plumbing
- Requires a nutrient reservoir and fits 15L or 30L pot configurations
- 1-year warranty
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Who This Is For
- You are switching to top-feed rain systems because you need even nutrient delivery across 16 pots without clogging.
- You are upgrading your pot layout because salt buildup and nutrient lockout in traditional setups stall your cycles.
What We Found
- The copper-plated covers are a game changer for long cycles where roots usually take over the plumbing.
- Those silver pipes actually keep the nutrient solution cooler than the standard black tubing found in other kits.
What Users Say
- Growers using this system say every plant finishes at the same height due to the consistent nutrient delivery.
- Users moving from flood tables say they stopped seeing salt buildup once the rain mimics natural nutrient flushing.
Alien Hydroponics RAIN System - 16 Pot 4 Row Kit
Achieving balanced nutrient distribution across multiple plants is often the biggest hurdle for indoor growers. The Alien Hydroponics RAIN System - 16 Pot 4 Row Kit solves this by mimicking natural rainfall, ensuring every plant receives a consistent flow of oxygenated nutrients. Designed for seasoned growers wanting a reliable, mid-sized system that supports steady outputs and different plant cycles, the RAIN Top-Feed Kit ensures optimal nutrient absorption and root health while minimizing wastage. For growers requiring a slightly different layout, the Alien Hydroponics RAIN System - 15 Pot 3 Row Kit provides the same high-performance top-feeding technology in a 3-row configuration.
The unique design of the RAIN System allows you to work with different growing mediums without worrying about root rot, nutrient lockout, or salt buildup. With options for 30-liter and 15-liter pots, growers can customize the system to fit their specific preferences. With no special tools and a no-glue design, this kit is easy to assemble and maintain, regardless of your experience level.
Please note: This kit requires a nutrient reservoir, which is not included. We highly recommend pairing it with a compatible tank like the Alien GardenTank 30 Gallon reservoir to complete your setup.
What's Included
- 1x DRAIN Pump Pipe Adapter
- 1x Pressure Water Pump 20
- 1x Cycle Timer
- 1x AERO/RAIN Header Pot Complete 20L
- 16x AERO/RAIN Pot 15L (or 30L)
- 1x Silver Lid
- 16x RAIN Lid Cover
- 16x RAIN Lid
- 32x RAIN Lid Clip
- 1x Header Pot Blank
- 32x Pot Stand for 15L Pot
- 16x RAIN Fabric Pot 15L
- 16x Drain Cover - Copper
- 2x Elbow 50mm Barbed
- 2x Tee 50mm Barbed
- 4x Elbow 50mm Dual Flow
- 13x Tee 50mm Dual Flow
- 17x Washer 50 X 64mm
- 17x Nut 50mm Dual Flow
- 14x Clamp Size 1
- 8x Clamp Size 2
- 4x Valve 16mm Green
- 4x Plug - 16mm
- 32x Tee 16mm - 4mm
- 16x Pot Clip 16mm
- 2x Elbow 20mm Barbed - 3/4" Female
- 2x Tee 19mm Barbed - 3/4" Male
- 2x Elbow 19mm Barbed - 3/4" Male
- 2x Elbow 19mm Barbed
- 2x Elbow 25mm Barbed
- 1x Siphon Tee 19mm Fitting
- 1x Siphon Tee 25mm Fitting
- 12x Pipe 16mm Silver Bulk by Meter
- 4x Pipe 19mm Black Bulk by Meter
- 4x Pipe 19mm Blue Bulk by Meter
- 4x Pipe 25mm Blue Bulk by Meter
- 7x Pipe 4mm Green Bulk by Meter
- 10x 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
Features
Dual-Flow™ Fittings
Patent-pending fittings allow for a free-flowing system while preventing root clogging.
Copper Drain Covers
Copper-plated covers naturally deter roots from entering and clogging your pipe network.
Heat-Resistant Pipes
Heat-reflective silver pipes deflect external warmth to keep your nutrient solution cool.
Raised Drainage Grid
Sloped bases and raised grids ensure water drains faster, preventing stagnant root zones.
Rain Brain Control
Automated timing ensures consistent nutrient delivery and precise feeding schedules.
Easy Glue-Free Setup
Threaded fittings and snap-on pipes allow for tool-free assembly and easy maintenance.
Durable Construction
High-quality, non-reactive silver polymer materials ensure longevity and solution purity.
Modular Design
Easily expand or reconfigure your system to maximize your specific growing space.
Specifications
| Specification | Value |
|---|---|
| Number of Pots | 16 |
| Number of Rows | 4 |
| Min Size (Compact) | 15L: 68⅛" x 58¼" | 30L: 79¾" x 70⅞" |
| Max Size (Compact) | 15L: 104¾" x 123⅝" | 30L: 127⅛" x 144½" |
| Min Size (Remote) | 15L: 72" x 58¼" | 30L: 83⅝" x 70⅞" |
| Max Size (Remote) | 15L: 144⅛" x 123⅝" | 30L: 166½" x 144½" |
| Water Pumps | JET-STREAM DRAIN 1100GPH & Pressure 20 |
| Rec. Reservoir Capacity | 70 Gallons / 280 Liters |
System Setup Steps:
1. Prepare Pots
Attach the necessary fittings to the pots.
2. Connect the System
Use piping to connect the pots and the header pot to establish the recirculating network.
3. Install Air System
Set up the air pump and connect it to the air stones in the pots.
4. Integrate Pumps
Install the water pump(s) for recirculation and chilling (if applicable).
5. Set Up Nutrient Tank
Connect the nutrient tank to the system.
6. Fill the System
Add water to the system.
Maintenance Tips:
- Maintain a 50-75cm center distance between each pot.
- Alien Hydro recommends a watering frequency of one minute every hour.
- Regularly check the filter for debris.
- Minimal cleaning is required when using mineral-based nutrients.
- Use ROOT ROT X™ to sterilize and keep roots healthy.
- Flush the system between crop cycles with clean water and disinfectant.
- Inspect sprinklers to ensure proper misting and water distribution.
Support & Manuals
Warranty
The ALIEN RAIN Top-Feed System is covered with a one-year warranty for your peace of mind.
Compare Alien Hydroponics Systems
| Feature |  |
 |
 |
 |
 |
| Hydroponic method | RDWC | RDWC | Aeroponics | Top-feed | Bottom-feed |
| Pot sizes available | 15.3 gallon (58L) | 5 gallon (20L) 9.5 gallon (36L) | 4 gallon (15L) 8 gallon (30L) | 4 gallon (15L) 8 gallon (30L) | 2.5-8 gallon |
FAQs
It mimics natural rainfall, ensuring even nutrient distribution and oxygenation while preventing salt buildup in the medium.
No, the kit requires an external reservoir like the Alien GardenTank, which is sold separately to allow for custom sizing.
Yes, the RAIN system is highly versatile and works exceptionally well with soil, coco coir, or other traditional growing mediums.
Absolutely. Alien Hydroponics systems are modular, meaning you can add more pots or reconfigure the layout as your garden grows.
Regularly check the filter and sprinklers for debris. Using a sterilizer like ROOT ROT X™ helps keep the system running efficiently.
No, the system features a no-glue, snap-on design with threaded fittings for easy tool-free setup and breakdown.
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.)
Why Trimleaf
Equipping home growers, craft producers, and commercial operations across North America since 2016.