RAIN™ Top-Feed Systems

Please note that ALIEN® RAIN™ systems are not yet stocked in North America; they are expected in early 2024. The V-SYSTEM ultimate recirculating deep water culture system is available. If you have interest in the RAIN systems, please contact us here for more information.

Sometimes nature knows best. The revolutionary ALIEN RAIN hydroponic system mimics rainfall to create a near-natural environment for the best possible plant growth, utilizing your choice of growing medium. Flexible, modular and scalable, RAIN is a fully automated watering system designed to help you grow the healthiest crops every time.

The patent-pending RAIN lid delivers nutrients evenly to the surface of the growing medium, just as rain would in nature. This washes away any salt residues and enables the plants' roots to use all of the growing medium right up to the surface for a larger root mass.

RAIN eliminates issues with top-surface algae growth using light-masking technology. Air channels on the sides and bottom of re-usable fabric pot inserts ensure optimal oxygen delivery to the root zone and allow the medium to dry uniformly between feedings. This encourages even root growth, prevents root rotting and nutrient lockout, while enabling the optimum amount of nutrients and minerals to reach the plant without waste.

Fully adaptable, the RAIN system can be used with soil, coco, rockwool, clay pellets or any other medium. Two pot sizes are available so you can choose the size plants you want to grow. With the ability to be configured as a recirculating or drain-to-waste system, RAIN gives you the power to grow how you want to and get the best out of any strain.

Explore the RAIN system

RAIN system features

The patent-pending Dual-Flow™ fittings are an oversized 2" / 50mm for a more free-flowing system. Slots located on the sides of the fitting allow water to pass through and enable total drainage of the pot.


Heat-reflective silver 2" / 50mm pipe for better flow and less heat introduction.

Copper-plated drain covers deter the roots from entering the pipework.


The 8 gallon / 30L or 4 gallon / 15L outer pots and lids are made from heat-reflective silver polymer, keeping soil temperatures cooler.

Pots have a raised drainage grid and sloped base to allow complete drainage.

Re-usable fabric pot inserts contain media, ensure even dry-back, and make cleaning easy.

Recirculation Method

Watch RAIN in Action

View other hydroponic system options