Coldstream Sentry Twin Rain Water Tank Filter with Remineraliser
Feel Confident About Every Glass You Pour.
You’re committed to a healthy home, and that includes the water you drink. But when your water comes from a tank, a bore, or even a river, you need to know it’s truly safe, pure, and delicious. You’ve done your research, you care deeply about what goes into your body and your home, and you shouldn’t have to be a water quality expert to trust your water source.
That’s why we created the Coldstream Sentry Twin Undersink Rain Water Tank Filter System – a robust, comprehensive solution designed to deliver clean, great-tasting, mineral-rich water right from your kitchen tap, specifically from untreated sources.
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Meet the Coldstream Sentry Twin: Your Complete Rainwater Solution
Designed for health-conscious homes utilising tank, bore, or river water, this powerful system combines advanced filtration with natural remineralisation. It ensures your water is not only safe but also perfectly balanced and delicious.
- UK-made Coldstream Sentry Ceramic Filter: The first line of defense, independently tested to NSF/ANSI Standards 42, 53, and P231. This ceramic powerhouse removes 99.9999% of bacteria, 99.9% of cysts (like Cryptosporidium), and 99.9% of microplastics. It’s ideal for untreated water sources (rainwater tanks, bore water, rivers), ensuring microbiological safety without chemicals or electricity.
- Omnipure Super Block Carbon Filter: This 1-micron absolute filter, NSF Certified & Tested, targets hard-to-remove contaminants like Chlorine, Lead, sediment, rust, and chemicals. It further refines your water, ensuring it’s free from unpleasant tastes and odors, and tackling the challenges of modern municipal disinfectants.
- Inline Mineral Cartridge: This final stage is an all-in-one solution that adds beneficial minerals back into your filtered water while eliminating any remaining taste or odor issues. It creates a delightful, sweet-tasting, naturally balanced water experience that won’t alter pH levels.
What Are You Avoiding?
- No more second-guessing if your tank or bore water is safe to drink for your family.
- No more worries about bacteria, cysts, microplastics, or chemical contaminants like chlorine and lead.
What You’ll Gain
- Confidence in the quality and purity of your water
- Peace of mind that your rain water naturally balanced with essential minerals
- Effortless access with great tasting water right from your tap, whenever you need it
$419.00 inc. GST
Description
We’ve Been In Your Shoes
We’re not just another water filter shop — we’re a family who started with one filter, trying to improve our own wellbeing. With a combined experience of over 40 years, we’ve helped thousands of customers find the right water filter system for their home. Now we help others cut through the confusion, with honest advice and products we truly believe in.
Everything You Want to Know (At a Glance)
Quick Answers
How often do I need to change the cartridges and how much do they cost?
– Coldstream Sentry cartridge: Every 6 months or 10,000 litres ($99)
– Omnipure Super Block cartridge: Every 12 months or 24,000 litres ($65)
– Inline Mineral cartridge: Every 2 years ($39)
Can I install this under sink filter myself?
Yes, you can install this undersink water filter yourself if you have basic plumbing skills. It’s WaterMark approved, meaning it meets Australian plumbing standards. If you prefer, your local licensed plumber can install it for you as well.
What contaminants does it remove?
This under sink water purifier removes bacteria, cysts, microplastics, chlorine, heavy metals, sediment, taste & odour.
How do I replace the cartridge?
Simply twist open the housing, remove the old cartridge, insert the new one, and twist the housing closed. No special tools required – it’s quick and easy!
What happens if it doesn’t work for me?
We’re here to guide you through every step, and while issues are rare, if something truly doesn’t work out, we’ll always honour our return policy on unused systems.
Specifications
- Filter output up to 10,000 litres, for optimal performance we recommend replacing the filters every 6-12 months
- 0.9 Micron absolute
- Dimensions: 23(W) x 43 (H) x 13(D)
- Cartridge sizes: 9″ x 2.5″
- Maximum flow rate: 2.5 litres per minute
- Warranty: 5 years (housing)
Filter Cartridges
The system requires 1 of these cartridges to be replaced every 6 months or 10,000 litres for optimal performance.
You want clean, safe water for your family—and the Coldstream CTO Sentry helps you get there. This all-in-one cartridge removes 99.9999% of bacteria, 99.9% of cysts (like Cryptosporidium), and 99.9% of microplastics. With its advanced design, it fits standard benchtop water filter & undersink water filters and delivers peace of mind with every glass. Certified to NSF standards and built in the UK, it’s your powerful ally in creating a healthier home through pure, great-tasting water.
This Omnipure Super Block filter acts as a crucial stage, ensuring exceptional taste and clarity for your rainwater. Its 1-micron absolute carbon block excels at removing chlorine, lead, sediment, rust, and chemicals, alongside cysts like Giardia and Cryptosporidium.
Manufactured in the USA and NSF Certified, it tackles tough contaminants found even in rainwater systems, providing an extra layer of filtration for ultimate peace of mind. Experience incredibly clean, great-tasting water with every sip.
Remineralising Cartridge
This innovative inline mineral cartridge is your all-in-one solution to transform filtered water. It goes beyond basic filtration, actively adding beneficial minerals back into your water while simultaneously eliminating any lingering tastes or odours. The result is a delightfully sweet-tasting, refreshing drink that genuinely enhances hydration.
Measuring a compact 10″ x 2″, this cartridge integrates seamlessly into various undersink water purification systems and reverse osmosis filter. It’s designed to maintain consistent pH levels, ensuring a balanced drinking experience. Easy to install with standard fittings, it’s the ideal final stage for achieving genuinely great-tasting, mineral-enriched water
Hassle-Free Installation
Installation of your twin undersink water filter system is straightforward with the included guide and complete package of parts. All necessary fittings, tubing, and adapters are provided for a seamless setup.
We want to ensure your installation experience is easy and stress-free. Please reach out to our support team with any questions!
Installation Diagram
Filter Components
- A – CTO Max Cartridge
- B – CTO Max Cartridge
- 1 – Housing Sump
- 2 – Housing Cap
- 3 – Stainless Steel Bracket
- 4 – Pressure Limiting Valve (PLV)
- 5 – John Guest Elbow (with red clips)
- 6 – Brass Nipple
3 Simple Steps to Safer Water — with Free Shipping Australia-Wide:
Join our Pure Water Tribe – Choose your custom rain water filter system and become part of a community that values clean, safe water.
Crafted for you in Sydney – Our team hand-builds your water filter to order and ships it with tracking, so you know its on its way.
Install your water filter simply, turn on your tap and feel at home with others who trust what they drink.
Clean Water Shouldn’t Be Complicated — Just Clear, Safe, and Ready
At Living Whole, we know you are the kind of person who wants to feel confident and at ease about what’s going into your body. In order to be that way, you need clean, trusted water flowing from your tap — no second-guessing, no stress.
The problem is that tap water is often full of chemicals like chlorine, PFAS, and heavy metals, which makes you feel frustrated, overwhelmed, and worried about your family’s wellbeing.
We believe no one should need a science degree just to drink safe water at home.
Here’s how it works:
- Choose the Coldstream Sentry Twin Rainwater Filter.
- We assemble your under sink filter for you and send it with everything you need.
- Install it easily and enjoy pure, safe water every day for years to come.
So order your undersink water filter system today, and you can stop wasting time researching or relying on bottled water — and start drinking with clarity, confidence, and peace of mind.
Certified Under Sink Filtration
This system meets the WaterMark specification AS/NZS 3497:1998 Amdt 1 2001 Drinking water treatment unit – Plumbing requirements.
Certificate Number 23124.
- Arsenic
- Chlorine
- Chlororform
- Copper
- Cryptosporidium & Giardia
- Cysts
- e. Coli Bacteria
- Heavy Metals
- Iron
- Lead
- Manganese
- Mercury
- Microplastic
- PCBs
- Pesticides
- Potassium
- Radium
- Sediment, Dirt & Rust
- Trihalomethane
- Arsenic
- Chlorine
- Chloroform
- Copper
- Cryptosporidium & Giardia
- Cysts
- e. Coli Bacteria
- Heavy Metals
- Iron
- Lead
- Manganese
- Mercury
- Microplastic
- PCBs
- Pesticides
- Potassium
- Radium
- Sediment, Dirt & Rust
- Trihalomethane
Choose Your Under Sink Water Filter Tap
All our under sink water filter taps include a base plate and connection fittings.
* Please Note: the width (W) refers to the dimension from the centre line of the tap body to the centre of the spout.
Retro with High Loop
Standard Retro faucet in a high loop design and long reach.
125mm W x 235mm H
Metro with High Loop
Standard Metro faucet in a high loop design.
160mm W x 250mm H
Antique
Standard Antique faucet in a high loop design.
125mm W x 235mm H
Euro with Long Reach
Standard Euro faucet in a long reach design.
150mm W x 230mm H
Side Lever High Loop 3-Way Mixer Chrome
The Side Lever High Loop 3-Way Mixer Tap in Chrome features a sleek high-loop design, providing hot, cold, and filtered water from a single tap.
203mm W x 365mm H
Side Lever Long Reach 3-Way Mixer Chrome
The Side Lever Long Reach Mixer Tap features a simple yet elegant design, providing hot, cold, and filtered water from a single tap.
195mm W x 325mm H
3-Way Mixer Tap Standard Chrome
The 3-Way Mixer Tap Standard Chrome comes in a sleek long-reach design, providing hot, cold, and filtered water from a single tap.
245mm W x 180mm H
Stainless Steel 3 Way High Loop Matte Black Mixer Tap
The Stainless Steel 3 Way Mixer Tap features a high loop design in a matte black finish, providing hot, cold and filtered water from a single tap.
225mm W x 400mm H
Data Sheets & Test Reports
Additional information
| Weight | 2.5 kg |
|---|---|
| Dimensions | 36 × 36 × 15 cm |
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