- 1x DRAIN Pump Pipe Adapter
- 1x Pressure Water Pump 40
- 1x Cycle Timer
- 1x AERO/RAIN Header Pot Complete 36L
- 36x AERO/RAIN Pot 15L (or 30L)
- 1x Large Pot Lid Adapter
- 1x Silver Lid
- 36x RAIN Lid Cover
- 36x RAIN Lid
- 72x RAIN Lid Clip
- 1x Header Pot Blank
- 72x Pot Stand for 15L Pot
- 36x RAIN Fabric Pot 15L
- 36x Drain Cover - Copper
- 2x Elbow 50mm Barbed
- 2x Tee 50mm Barbed
- 4x Elbow 50mm Dual Flow
- 33x Tee 50mm Dual Flow
- 37x Washer 50 X 64mm
- 37x Nut 50mm Dual Flow
- 14x Clamp Size 2
- 8x Clamp Size 3
- 4x Valve 16mm Green
- 4x Plug - 16mm
- 72x Tee 16mm - 4mm
- 36x Pot Clip 16mm
- 2x 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
- 24x Pipe 16mm Silver Bulk
- 4x Pipe 19mm Black Bulk
- 4x Pipe 25mm Blue Bulk
- 4x Pipe 40mm Silver Spiral Bulk
- 15x Pipe 4mm Green Bulk
- 20x 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
Alien Hydroponics RAIN System - 36 Pot 4 Row Kit
- 36-pot layout provides uniform top-feed nutrient delivery for high-density setups
- Side-slotted Dual-Flow fittings prevent root clogging without sacrificing flow rate
- Modular design fits 15L or 30L pots with no-glue, tool-free assembly
- 1-year manufacturer warranty
- View More Details
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Commercial & Bulk Purchasing
We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
Who This Is For
- You are switching to a RAIN system because manual watering across dozens of pots causes uneven growth and wasted feed
- You are scaling to a 36-pot layout because managing multiple smaller systems makes consistent feeding a chore
What We Found
- The copper drain covers are a game changer because they naturally keep roots from clogging the return pipes.
- We suggest the remote header option for easier reservoir management without stepping into the canopy area.
- The tool-free fittings make a huge difference when you need to break down or move this massive 36-pot array.
What Users Say
- Growers using the rainfall delivery say they stopped seeing nutrient lockout caused by uneven distribution.
- Operators running these 36-pot kits report that dual-flow fittings significantly reduced plumbing maintenance.
- Users who added the 145-gallon tank say the matched flow rates prevent the pump from ever running dry.
Alien Hydroponics RAIN System - 36 Pot 4 Row Kit
Nutrient distribution has traditionally been the biggest bottleneck in large-scale hydroponic systems, often leading to inconsistent growth and wasted resources. The Alien Hydroponics RAIN System - 36 Pot 4 Row Kit eliminates these challenges by providing a professional-grade solution for commercial growers and researchers who demand precision. By mimicking the delivery of natural rainfall, this system ensures every plant receives uniform nutrient absorption and maximum oxygenation. Whether you are expanding your facility or comparing this to an Alien RDWC system, the RAIN kit delivers the production consistency required for high-yield harvests.
Designed for versatility, the RAIN Top-Feed System is compatible with various growing mediums while proactively preventing common issues like root rot, nutrient lockout, and salt buildup. Available in both 4-gallon (15L) and 8-gallon (30L) pot configurations, this kit allows for complete customization to fit your specific canopy requirements. Its tool-free, no-glue assembly ensures that even a massive 36-pot installation remains straightforward to set up and maintain.
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 145 Gallon reservoir to complete your setup.
What's Included
Features
Dual-Flow™ Fittings
Patent-pending side-slotted fittings prevent root clogging while maintaining high flow.
Copper Drain Cover
Integrated copper-plated covers naturally deter roots from entering the pipe network.
Heat-Resistant Pipes
Heat-reflective silver polymer deflects thermal energy to keep nutrient solutions cool.
Raised Drainage Grid
Sloped base and raised grids facilitate rapid, efficient drainage to prevent waterlogging.
Rain Brain Control
Automated timing ensures consistent nutrient delivery and precise feeding schedules.
Glue-Free Setup
Threaded fittings and snap-on pipes allow for easy assembly without toxic glues.
Durable Build
Constructed with high-quality, non-reactive materials for long-term commercial use.
Customizable
Remote header options and adjustable pot spacing to maximize your grow room footprint.
Specifications
| Specification | 15L Configuration | 30L Configuration |
|---|---|---|
| Number of Pots / Rows | 36 Pots / 4 Rows | 36 Pots / 4 Rows |
| Min Size (Compact Header) | 138.25" L x 58.25" W | 165.5" L x 70.87" W |
| Max Size (Compact Header) | 226" L x 123.6" W | 278" L x 144.5" W |
| Min Size (Remote Header) | 142.1" L x 58.25" W | 169.5" L x 70.87" W |
| Max Size (Remote Header) | 265.3" L x 123.6" W | 317.3" L x 144.5" W |
| Water Pump Included | 1100GPH Drain + Pressure Pump 40 | 1100GPH Drain + Pressure Pump 40 |
| Rec. Reservoir Capacity | 145 Gal / 550 Liters | 145 Gal / 550 Liters |
Support & Manuals
Warranty
The Alien Hydroponics RAIN Top-Feed System is backed by a one-year manufacturer warranty, ensuring peace of mind for your commercial investment.
FAQs
Unlike standard drip lines that can clog or deliver uneven pressure, the RAIN system uses a specialized lid and distribution manifold that mimics natural rainfall, ensuring the entire root zone is hydrated evenly while oxygenating the solution.
While the RAIN system is highly efficient, we recommend using mineral-based nutrients to ensure the longest lifespan of the pumps and to minimize maintenance. If using organics, regular cleaning of the filters and lines is essential.
No, a nutrient reservoir is not included. For a system of this size, we recommend a tank with at least 145 gallons (550 liters) of capacity, such as the Alien GardenTank.
Copper is a natural root deterrent. By plating the drain covers in copper, the system prevents aggressive root systems from growing into and clogging the drainage pipes, maintaining a free-flowing system.
Yes, the RAIN system is highly versatile and works exceptionally well with coco coir, soil, or mixed mediums, making it a great choice for growers who prefer traditional substrates over pure water culture.
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.