Pentair
Pentair RO-2550 Green Underbench RO System, 4 Stage
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- NZ owned & operated
- Most orders dispatched same or next day
- Click & collect from Te Rapa, Hamilton
- Brand
- Pentair
- Type
- Reverse Osmosis
- SKU
- RO-2550
How it works
Four stages
Water goes through two pre-filters and the RO membrane into the tank, then a carbon polishing filter on the way to the drinking tap.
- Cold water in

Stage 3
RO membrane
Pentair GRO-50EN high-recovery membrane (50 GPD)
The reverse osmosis membrane.
Stage 4
Polishing filter
Compatible 10" polishing carbon filter
Carbon polishing before the drinking tap.
- Filtered water at the drinking tap
Tap and fittings
What comes with it
What's in the RO-2550 system.
-
Drinking tap
IncludedComes with the system.
-
Storage tank
IncludedComes with the system.
-
Filters and membrane
IncludedTwo pre-filters, the RO membrane and a carbon polishing filter.
Specs
Specs and what's in the box
- Model
- Pentair RO-2550
- Type
- Underbench reverse osmosis
- Stages
- 4: 2 pre-filters, RO membrane, carbon polishing filter
- Includes
- Storage tank and drinking tap
What's in the box
- Pentair RO-2550 4 stage RO system
- Storage tank
- Drinking tap
Common questions
How many stages does it have?
Four: two pre-filters, the RO membrane and a carbon polishing filter.
Does it come with a tank and tap?
Yes, the storage tank and drinking tap are included.
Still not sure?
Tell us about your home and water supply and we'll point you to the right system.
Full product details
Read the full description
The Pentair RO-2550 Green is a 4 stage reverse osmosis system that sits under the sink and feeds its own drinking tap. Water goes through two pre-filters and the RO membrane, then a carbon polishing filter. The storage tank and tap come with it.
Reverse osmosis pushes water through a semi-permeable membrane, and the filtered water is held in the storage tank ready for the drinking tap. We recommend RO when you want a dedicated drinking water tap under the sink.
We're NZ owned in Te Rapa, Hamilton. If it's not right, we'll put it right.