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The Gapper Light Commercial RO System

$44.00 (Fixed shipping cost)

Product Description


Residential-scale systems too slow, and commercial systems too expensive for your application?   Meet The Gapper - an RO system that utilizes the best of both worlds to deliver up to 400 gpd at an incredibly affordable price!  True to its name, the Gapper fills the gap between traditional residential scale RO's that produce up to 150 or 200 gpd, and commercial RO's that typically begin at 500 gpd.

The Gapper features three 20" x 2.5" standard-sized prefilters - one sediment filter and two carbon blocks; a low energy, made-in-the-USA commercial RO membrane; liquid-filled pressure gauge; high pressure pump; auto flush valve; feed water solenoid valve; housing wrench; stainless steel membrane housing, and an incredible 1:1 waste water to purified water ratio!  Includes 10 feet of 3/8" feedwater tube (blue) and permeate tube (white), 10 feet of 1/4" concentrate tubing (yellow), and 10 feet of 1/2" white tubing to facilitate rinsing new carbon blocks.  With 98.5% rejection, The Gapper is an excellent choice to purify your water before it's delivered to a deionization stage.

For chlorinated feedwater, the standard filter package can be selected.  For addressing feedwater with chloramines, or for enhanced chlorine removal, choose the Chloramine Filter Package.  This package features a 1 micron sediment filter, and two best-in-class 20" x 2.5" Chloraguard Carbon Blocks. 

The Gapper measures 27" wide, 29" tall, and 8" deep.  You'll need several extra inches below the housings to facilitate filter changes.

Operating limits identified below should not be exceeded. Permeate flow and salt rejection based on 550 ppm, 150 psi, 77°F (25°C), pH 7, and 50% recovery.

Maximum Feed Temperature: 90°F
Minimum Feed Temperature: 40°F
Maximum Feed Pressure: 85 psi
Minimum Feed Pressure: 30 psi
Maximum Operating (Pumped) Pressure: 130 psi
Maximum SDI Rating: < 3 SDI
Maximum Turbidity: 1 NTU
Maximum Free Chlorine at Membrane: 0 ppm
Maximum TDS: 2000 ppm
Maximum Hardness: 1 Grain/Gallon
Maximum pH (Continuous): 11
Minimum pH (Continuous): 4
Maximum pH (Cleaning 30 Min.): 12
Minimum pH (Cleaning 30 Min.): 2

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Product Reviews

  1. Best value "entry level" commercial RO unit around! 5 Star Review

    Posted by on 12th Jul 2022

    I love my new Gapper! I have been making water for my reef aquarium for decades with upgraded "consumer grade" RO units and as my systems have grown over the years, I needed more. Buckeye Hydro made the choice simple. This unit has everything you need, stainless steel membrane housing, pressure switch, auto membrane flush timer, quality power supply, and booster pump! The 1:1 production to waste ratio is spot on and I am happy to be dumping far less water down the drain. Quality components and simple but effective design.

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Buckeye typcially ships the same day, or less commonly, the day after an order is placed. The majority of our shipments are sent UPS Ground or FedEx Ground. Estimated delivery times for these services are similar, and are shown below. See our policies page for additional shipping information.

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