ARROW DRIPPER 2L/HR 4MM

Description

Arrow Dripper 2L/hr 4mm is a precision micro-irrigation fitting used in dripper-fed hydroponic systems to deliver a controlled, consistent flow of nutrient solution directly to the base of individual plants or growing containers. We have been supplying irrigation fittings and dripper components to UK hydroponic growers since 2017 as essential building blocks for reliable, automated feeding systems in the grow room.

Precision Flow Control at the Plant Level

The Arrow Dripper delivers a regulated 2 litres per hour flow rate that remains consistent regardless of modest variations in line pressure, ensuring every plant in your irrigation system receives the same volume of nutrient solution per watering cycle. This uniformity is critical in multi-plant systems — uneven delivery caused by unregulated drippers or varying line lengths leads to inconsistent plant size, variable EC in growing media, and unnecessary management complexity.

The arrow stake design is pushed directly into the growing medium, positioning the dripper outlet at the root zone where nutrient solution is needed rather than on the surface where it can pool, attract fungus gnats, or miss the root ball entirely. The 4mm inlet barb connects to standard 4mm micro-irrigation tubing, which runs from your main supply manifold to each pot in your system.

System Design and Compatibility

For a standard dripper system, run 13mm main supply line from your pump to a central manifold, then branch 4mm micro-tubing to each pot with an Arrow Dripper at the end of each line. Use an 8-way or adjustable dripper manifold to distribute evenly from the main supply. Calculate your total dripper flow demand (number of drippers × 2L/hr) to size your pump correctly — aim for a pump that delivers at least 20% more than your calculated total flow at your operating head pressure.

Pair with 4mm micro-tubing, an 8-way dripper manifold, and a quality submersible pump for a complete, reliable dripper irrigation system. Compatible with all hydroponic nutrients and growing media. A precision component that makes the difference between a system that feeds consistently and one that requires constant manual adjustment.