
Best selling Indoor Growing Irrigation
Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.
1. Blumat Earth humidity sensor
The tensiometer measures the moisture inside the pot bale and indicates the suction tension. This can be used to determine which plants are to be watered or not. Measuring range 10-750 mbar, suitable for earth cultures and clay granules, battery operated (not included). Length of the sensor approx. 24cm, maximum insertion depth approx. 18cm.

2. Garland table insert
This flexible plastic tray is excellent for preventing water damage. The 0.36 m Garland tray fits perfectly in a Homebox XS, Darkroom 60, Grolab 60, or any grow tent that measures at least 0.6 x 0.6 meters. These trays are typically used as saucers or catch trays. For watering Root Pouches or Smart Pots, the nutrient solution can simply be poured into the tray. It is also possible to use these trays for ebb and flow irrigation. The maximum capacity is 30 liters. Garland catch trays measure 0.6 m x 0.6 m x 7 cm and are made of black flexible plastic.

3. Holos Pipette 3 ml
The 3 ml pipette from Holos is a practical tool for watering in indoor growing. Made from clear LDPE plastic, it allows for precise dosing of liquids, making it ideal for targeted application in plant care. With a length of 0.19 meters and a weight of only 5 grams, it is lightweight and easy to handle. The transparent design enables simple visual inspection of the contents, allowing users to keep an eye on the fill level at all times. The pipette is suitable for both injecting and spraying nutrient solutions or water, making it a versatile aid for hobby gardeners and professional plant growers. Its compact size and light weight also make it a convenient companion for on-the-go use. This pipette is an essential tool for anyone who values precise and effective watering of their plants.

4. Naturewater Reverse osmosis system NW-RO400-E2
With the Naturewater reverse osmosis system NW-RO400-E2, you get clean water straight from the tap. To do this, the water is pressed against a membrane inside the reverse osmosis system and only pure water (permeate) passes through it. The dissolved minerals and pollutants are not allowed to pass through the membrane and are discharged with the residual water (concentrate). This method is not only effective, but also cost-effective.
Experience a completely new flavour of pure water. This type of water treatment is not only suitable for drinking water, but can also be used for aquarium water and wherever you need demineralised water.
Reverse osmosis is a natural process that does not require any chemicals. The dissolved salts and pollutants are safely removed from the water by purely physical means.
The membrane booster pump integrated into the reverse osmosis system increases the pressure within the filter system and improves the quality of the water produced. However, the quantity and quality of the osmosis water also depend on the pressure and temperature of the raw water.
The system can filter up to 1500 litres per day and removes up to 99% of foreign substances such as heavy metals, pesticides, hormones, fungicides, pharmaceuticals, nitrate, phosphate, chlorine, asbestos, lime, radioactive isotopes, bacteria, protozoa, cysts, algae, spores, etc. from the water.

5. Arka Biotechnologie myAQUA 1900 Osmoseanlage
MyAQUA 1900
Maximum daily output: 1900 liters of water
Dimensions: approx. 434 mm x 163 mm x 418 mm
Osmosis water/wastewater yield: approx. 1:1 - 1.5
Salt retention capacity: up to 99%
Flow rate: max. 1.32 l/min
Operating pressure: 1 – 4 Bar
Usable water temperature: 5 – 38 °C
Power consumption: 70 W (standby: 1-2 W)
Voltage: 24 V
Included in delivery:
- 300 cm hose (supply)
- 600 cm hose (osmosis & wastewater)
- T-piece 3/8 - 3/8 - 3/8 including valve
- Wall mount
- Power supply
- TDS/EC meter
- Wastewater clamp
- Water connection 3/4 - 3/8
- Shut-off valve 1/4 - 1/4
The MyAQUA 1900 filters quickly and effectively up to 99% of salts, bacteria, and pollutants such as nitrate, phosphate, and heavy metals from tap water, making it safe for use in any saltwater and freshwater aquarium. The MyAQUA 1900 achieves a water yield of up to 1:1 and uses only natural filter materials, without chemical additives. Thanks to the included accessories, the MyAQUA 1900 can be connected to standard household water lines.
Note: Built-in safety feature
The MyAQUA 1900 has an automatic shut-off function. It interrupts the production of osmosis water after 12 hours of continuous operation. The LEDs will then light up red. If you wish to continue producing osmosis water, briefly disconnect the device from the power supply. The system will then resume normal operation.

6. Holos Syringe
The Holos syringe is a practical tool for irrigation in indoor growing. It allows for precise dosing of liquids and is ideal for use in plant care. The cylinder is made of high-quality polypropylene, while the piston is crafted from polyethylene. These materials ensure high transparency and durability. The syringe features a clear, smudge-proof graduation that allows for easy and accurate reading of the contents. Additionally, it has an extended scale that facilitates measuring beyond the nominal volume. With a minimal residual volume and a secure piston stop, this syringe is a reliable choice for anyone looking to optimally care for their plants.
- Highly transparent cylinder for optimal visibility
- Smudge-proof graduation for precise readability
- Extended scale for easy measuring beyond the nominal volume
- Minimal residual volume for efficient use.

7. Holos Wasserwanne PE rund, schwarz 240 Liter
The round water basin PE from Holos is a practical solution for irrigation in indoor growing. With a volume of 240 liters, it provides ample space for efficient water absorption and distribution. This basin is made from high-quality polyethylene (PE), making it robust and durable. Its round design and generous dimensions of 96 cm in diameter and 43 cm in height allow for easy handling and integration into various growing systems. The water basin is ideal for use in greenhouses or other indoor growing areas where reliable irrigation is essential. It is lightweight yet stable, facilitating transport and positioning. This water basin is a valuable addition for anyone looking to optimally care for their plants.
- Made from durable polyethylene (PE) for longevity
- Ideal for efficient irrigation in indoor growing environments
- Round design allows for easy integration into various growing systems.

8. Tamar Giessstab elektrisch 5m Schlauch
Electric Spray Gun Irrigation Sprayer Rechargeable Battery Garden Sprayer Plant Mister Sprayer Yard Lawn Weeds Plants Flowers Sprayer
Features:
Convenient Irrigation: The watering wand is ideal for manually watering plants, beds, or flower pots, providing targeted water delivery where it is needed.
Ergonomic Design: The watering wand fits comfortably in the hand and is easy to use, allowing for extended watering without fatigue.
Benefits:
Targeted Watering: With the watering wand, you can specifically water certain plants or areas without wasting water unnecessarily.
Versatile Use: Perfect for use in the garden, on the balcony, or in agriculture. The watering wand is versatile and can be quickly connected and used.
Efficient Watering: With its simple handling and practical design, you can efficiently and gently supply plants with water.
The practical watering wand is the ideal tool for anyone looking for an easy and precise method of irrigation. Perfect for gardeners and hobbyists alike.

9. WePot Olla M Irrigation
Olla M This seed or raindrop-shaped pot is the best friend of your potted plants. Taking up little space (10 cm wide and 16 cm high), it can benefit one or several of your plants. In a pot or planter, it is a favorite Olla everywhere. Its 0.7-liter tank empties within 3 to 9 days, depending on the soil, sunlight, and the needs of your plant. Its cap allows for maximum evaporation display, thus achieving better performance. With this Olla, you are doing something good for the planet while saving up to 70% water compared to conventional watering. A tip: For pots over 25 cm in diameter, it can easily take care of two of your favorite plants in a shallow pot or planter.
Water your plants with a terracotta pot. Its uniqueness lies in its adaptability to any type of plant. Whether you have houseplants or a vegetable garden in the ground, with an Olla, you can successfully grow your plants optimally. But that's not all. Thanks to deep watering from the ground, the Olla prevents water from stagnating or pooling at the base of your plant. By directly reaching the roots, it avoids water stress, weed growth, and the occurrence of diseases.
Application: Dig a hole near a plant. Bury the Olla up to the line. Fill the Olla with water. Close with the cap. Refill every 2-3 days. Do not fill with water at temperatures below 0 °C. Clean once a year with a sponge.

10. Holos Water Tank PE black 180 litres
The black PE water tank with a volume of 180 liters is a practical plastic container specifically designed for irrigation in indoor growing. With its compact dimensions, it is ideal for placement under tables or in other tight spaces. The tank is made from high-quality polyethylene (PE), making it robust and durable. The black color not only provides an appealing look but also contributes to light absorption, which can be beneficial for certain plants. The water tank is versatile and offers a reliable solution for watering plants indoors. It is easy to handle and allows for efficient water supply, which is crucial for the growth and health of the plants.
- Made from durable polyethylene (PE) for longevity
- Compact dimensions for space-saving use
- Suitable for irrigation in indoor growing.
