A smaller (35mm) capacity irrigation system for trees in soft landscapes. Available in Plastic or metal with cap and or chain in a variety of lengths (rootball dependant)for discreet irrigation.
Developed in the early 1990s, the RootRain Metro system is one of the most widely specified proprietary tree pit irrigation systems in the world. RootRain Metro is available in four different sizes and with three different cap configurations.
| Code | Cap Type | Length | Rootball Diameter |
| RR1A | Plastic | 1.25m (4ft) | 0.4m |
| RRPC1A | Plastic with Chain | 1.25m (4ft) | 0.4m |
| RRMC1A | Metal with Chain | 1.25m (4ft) | 0.4m |
| RR2A | Plastic | 1.75m (6ft) | 0.55m |
| RRPC2A | Plastic with Chain | 1.75m (6ft) | 0.55m |
| RRMC2A | Metal with Chain | 1.75m (6ft) | 0.55m |
| RR3A | Plastic | 2.5m (8ft) | 0.8m |
| RRPC3A | Plastic with Chain | 2.5m (8ft) | 0.8m |
| RRMC3A | Metal with Chain | 2.5m (8ft) | 0.8m |
