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Sentry Water Filters

RO Premium Bench Counter Top Reverse Osmosis Water Filter

RO Premium Bench Counter Top Reverse Osmosis Water Filter

Regular price $375.00 AUD
Regular price Sale price $375.00 AUD
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RO PREMIUM BENCH COUNTER TOP REVERSE OSMOSIS WATER FILTER

Counter Top Reverse Osmosis Water Filter - Premium Counter / Bench Top Reverse Osmosis Water Purifier + All Filters

Premium Bench Top Reverse Osmosis Water Filter System – Locally Assembled in QLD

NO PLUMBING REQUIRED CONNECTS TO END OF MOST STANDARD* SINK MIXER TAPS

Assembly Option
If you’re working with limited counter space, choose the Vertical Assembly option. We'll assemble the filter system to stand upright, so it takes up less surface area and fits more easily in tight or narrow spaces — perfect for smaller kitchens.

*A standard mixer tap refers to a tap where the aerator at the spout can be unscrewed, revealing either a 20mm female thread or a 23mm male thread.

  • If your tap has a 20mm female thread, you’ll need to use the supplied thread converter (inside-to-outside adapter) to connect the diverter valve.

  • If your tap reveals a 23mm male thread after removing the aerator, the diverter valve will connect directly without the need for a converter.

This setup ensures easy installation of our bench top water filter systems to most standard kitchen mixer taps without plumbing modifications.

Our reverse osmosis (RO) systems are professionally assembled, leak-tested, pressure-tested, and performance-rated at our Sunshine Coast, QLD facility. Each unit is built to deliver exceptional water purity and long-term reliability.

Unit Dimensions:

  • Length: 45cm
  • Width: 35cm
  • Height: 20cm
  • Faucet Height: 42cm

We supply CTRO-4P-G/A/N premium replacement filters specifically designed for this bench top RO system, ensuring optimal performance and water quality.

Why Choose Our Locally Assembled RO Systems?

  • Engineered to produce high-purity drinking water at an affordable price
  • Every unit is leak and pressure tested to meet stringent quality standards
  • Ideal for Australian households seeking safe, clean, and great-tasting water

If your local water pressure is below 45psi, we recommend selecting a system with a booster pump or low-pressure membranes to maintain flow rate and filtration efficiency. Systems with a pressurised tank deliver water faster than those without.

Alkaline Water Benefits

Many users report health benefits from drinking alkaline water, including:

  1. Enhanced hydration and absorption
  2. Relief from acid reflux symptoms
  3. Increased oxygen levels and energy
  4. Antioxidant properties that may support anti-ageing and disease prevention
  5. Immune system support
  6. General improvements in wellbeing

Post Filter Options – Tailored to Your Needs

Choose the right post filter based on your water source and health goals:

  • Magnesium Alkalising Post Filter – for alkaline water production
  • Coconut Shell Carbon Post Filter – for pure, neutral-tasting water
  • 0.5 Micron Silver-Infused Carbon Block Filter – for untreated water sources such as creek, dam, or rainwater tanks

Reverse Osmosis Filtration – Trusted Technology

Reverse osmosis is widely recognised for its ability to produce consistently pure water, typically reducing total dissolved contaminants by up to 96%. Our RO systems effectively remove or reduce:

  • Fluoride
  • Chlorine
  • Cysts and bacteria
  • Heavy metals
  • PFAS and other forever chemicals

Need Help Choosing a System? If you have questions or need guidance selecting the right water filtration system, message us directly – we’re here to help.

The table below outlines the average removal rates for selected contaminants commonly found in drinking water. These figures are based on laboratory testing under standard conditions and may vary depending on water quality, system configuration, and membrane performance.

Please note that this is not an exhaustive list—reverse osmosis is capable of reducing a wide range of dissolved substances. On average, RO systems remove approximately 95–99% of total dissolved solids (TDS), including many inorganic compounds, heavy metals, and chemical contaminants.

CONTAMINANT

REDUCTION

CONTAMINANT

REDUCTION

Barium

97%

Potassium

99.9%

Bicarbonate

99.9%

Radium

97%

Cadmium

97%

Selenium

97%

Calcium (Hardness)

99.9%

Silicate

99%

Chromate

95%

Silver

99%

Copper

97%

Sodium

98%

Detergents

97%

Strontium

97%

Fluoride

99%

Sulphate

99.9%

Lead

97%

PCB’s

97%

Magnesium

99.9%

Insecticides

97%

Nickel

97%

PFAS / PFOA

97%

All components in our systems that come into contact with water are manufactured from BPA-free, food-grade plastics, ensuring safety and compliance with health standards. We source only high-quality filters and parts that meet or exceed recognised industry benchmarks for performance and reliability.

SYSTEM SPECIFICATIONS:

Minimum feed pressure

45psi / 300kpa

Maximum feed pressure

80psi / 550kpa

Minimum operating temperature

5°C / 40°F

Maximum operating temperature

45°C / 110°F

Minimum feed water pH

pH 3

Maximum feed water pH

pH 11

Maximum feed water TDS

< 500ppm

Production rate

50-150GPD / 190-525LPD

If your feed water TDS exceeds 500ppm, the system’s minimum operating pressure may be affected. In such cases, we recommend consulting us prior to purchase to ensure suitability. Our reverse osmosis systems are generally well-suited to town mains water supplies, where pressure and quality are consistent. However, if you intend to use the unit with tank water, bore water, or other non-mains sources, we strongly advise testing both feed pressure and water quality before installation to ensure optimal performance.

KIT INCLUDES:

  • Multi stage reverse osmosis unit is case as pictured:
    • Casing as pictured with mounted modern faucet.
    • 1x inline activated GAC high volume chlorine filter.
    • 1x inline poly spun sediment + carbon fines filter.
    • High quality NSF certified RO membrane/s as selected.
    • Unit with +/- 1.5 litre storage tank for faster dispensing.
  • Your choice of one of the following system variations available:
    • 1x post RO membrane final conditioning filter as selected.
    • 50GPD, 75GPD, 100GPD or 150GPD membrane as selected.
  • Sink mixer diverter* with waste return outlet and thread adapter.
  • An all chrome modern style faucet as pictured in the listing images.
  • An installation kit including a roll of tubing, a roll of thread tape, spare fittings.
  • An installation and maintenance guide.

This RO unit has a 36-month warranty which is subject to our warranty terms and conditions and is installed with a pressure reducing valve and leak shut off device

If you are not entirely satisfied with your purchase please contact us so that we can try to resolve your concerns.

Why Choose the Premium Bench Top Reverse Osmosis Water Filter?

The RO Premium Bench Counter Top Reverse Osmosis Water Filter is a convenient and powerful solution for home water purification. Assembled, leak + pressure tested + performance rated locally at our QLD premises, this system is designed to provide the purest possible drinking water. It reduces contaminants by an average of +/- 96%, including chlorine, fluoride, heavy metals, and even PFAS/PFOA "forever chemicals". You can choose to have a post-filter for regular pure water, alkaline water, or an anti-bacterial filter for untreated water.

Compact Design and Powerful Performance

This premium unit is encased in a compact design with measurements of L=45cm x W=35cm x H=20cm. It features an inline granular activated carbon chlorine filter, an inline poly spun sediment + carbon fines filter, and a high-quality NSF certified RO membrane with a production rate of 50GPD to 150GPD. The unit also includes a +/- 1.5 litre storage tank for faster dispensing.

Seamless Integration and Easy Maintenance

This system is designed for a simple, no-plumbing installation and connects easily to a standard mixer tap using the supplied diverter with a waste return outlet. A modern faucet is integrated into the casing. The kit includes all necessary fittings, tubing, and an installation and maintenance guide, making the setup and upkeep a breeze. The unit is also covered by a 24-month warranty.

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Customer Reviews

Based on 1 review
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Sue Van cuylenburg
Amazing device

I bought a Premium Counter Bench Top Reverse Osmosis RO Water Filter with a magnesium alkalising ioniser. The water tastes amazing, I live in Kuranda North Queensland where the water is almost undrinkable. I used to spend huge amounts of money on bottled water and disliked throwing the plastic bottles away. I coupled the water filter with a carbonated water maker and now have high quality tasty cheap sparkling water whenever I want it. Customer service was equal to the standard of the product ie amazing. Service was caring, professional and personal. I would highly recommend this product and the superb owners and workers.

Dear Sue,
Thank you for taking the time to leave such a positive review for our Premium Counter Bench Top Reverse Osmosis RO Water Filter. We are thrilled to hear that you are enjoying the amazing taste of pure water from our product, especially in an area where the water quality is not the best. We understand the struggle of constantly buying bottled water and the impact it has on the environment. We are so glad that our water filter has provided you with a cost-effective and eco-friendly solution. It's also great to hear that you have paired it with a carbonated water maker for added convenience. Our team takes pride in providing exceptional customer service, and we are happy to hear that it has met your expectations. We appreciate your recommendation and hope to continue exceeding your expectations in the future.
Cheers to delicious and affordable pure water!

Customer Reviews

Based on 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
S
Sue Van cuylenburg
Amazing device

I bought a Premium Counter Bench Top Reverse Osmosis RO Water Filter with a magnesium alkalising ioniser. The water tastes amazing, I live in Kuranda North Queensland where the water is almost undrinkable. I used to spend huge amounts of money on bottled water and disliked throwing the plastic bottles away. I coupled the water filter with a carbonated water maker and now have high quality tasty cheap sparkling water whenever I want it. Customer service was equal to the standard of the product ie amazing. Service was caring, professional and personal. I would highly recommend this product and the superb owners and workers.

Dear Sue,
Thank you for taking the time to leave such a positive review for our Premium Counter Bench Top Reverse Osmosis RO Water Filter. We are thrilled to hear that you are enjoying the amazing taste of pure water from our product, especially in an area where the water quality is not the best. We understand the struggle of constantly buying bottled water and the impact it has on the environment. We are so glad that our water filter has provided you with a cost-effective and eco-friendly solution. It's also great to hear that you have paired it with a carbonated water maker for added convenience. Our team takes pride in providing exceptional customer service, and we are happy to hear that it has met your expectations. We appreciate your recommendation and hope to continue exceeding your expectations in the future.
Cheers to delicious and affordable pure water!

Customer Reviews

Based on 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
S
Sue Van cuylenburg
Amazing device

I bought a Premium Counter Bench Top Reverse Osmosis RO Water Filter with a magnesium alkalising ioniser. The water tastes amazing, I live in Kuranda North Queensland where the water is almost undrinkable. I used to spend huge amounts of money on bottled water and disliked throwing the plastic bottles away. I coupled the water filter with a carbonated water maker and now have high quality tasty cheap sparkling water whenever I want it. Customer service was equal to the standard of the product ie amazing. Service was caring, professional and personal. I would highly recommend this product and the superb owners and workers.

Dear Sue,
Thank you for taking the time to leave such a positive review for our Premium Counter Bench Top Reverse Osmosis RO Water Filter. We are thrilled to hear that you are enjoying the amazing taste of pure water from our product, especially in an area where the water quality is not the best. We understand the struggle of constantly buying bottled water and the impact it has on the environment. We are so glad that our water filter has provided you with a cost-effective and eco-friendly solution. It's also great to hear that you have paired it with a carbonated water maker for added convenience. Our team takes pride in providing exceptional customer service, and we are happy to hear that it has met your expectations. We appreciate your recommendation and hope to continue exceeding your expectations in the future.
Cheers to delicious and affordable pure water!