---
product_id: 73132933
title: "Aquasure Premier 4-Stage Reverse Osmosis Under Sink Drinking Water RO Filtration Purification System | Removes 99% of Contaminants | 75 GPD, Leak-Proof, Quick Change Filters, with Tank & Chrome Faucet"
brand: "aquasure"
price: "€ 425.60"
currency: EUR
in_stock: true
reviews_count: 9
category: "Aquasure"
url: https://www.desertcart.ie/products/73132933-aquasure-premier-4-stage-reverse-osmosis-under-sink-drinking-water
store_origin: IE
region: Ireland
---

# 4-stage filtration 0.0001 micron precision 75 GPD capacity Aquasure Premier 4-Stage Reverse Osmosis Under Sink Drinking Water RO Filtration Purification System | Removes 99% of Contaminants | 75 GPD, Leak-Proof, Quick Change Filters, with Tank & Chrome Faucet

**Brand:** aquasure
**Price:** € 425.60
**Availability:** ✅ In Stock

## Summary

> 💦 Drink Pure, Live Pure - Elevate your hydration game!

## Quick Answers

- **What is this?** Aquasure Premier 4-Stage Reverse Osmosis Under Sink Drinking Water RO Filtration Purification System | Removes 99% of Contaminants | 75 GPD, Leak-Proof, Quick Change Filters, with Tank & Chrome Faucet by aquasure
- **How much does it cost?** € 425.60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/73132933-aquasure-premier-4-stage-reverse-osmosis-under-sink-drinking-water)

## Best For

- aquasure enthusiasts

## Why This Product

- Trusted aquasure brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pure Water, Pure Life:** Experience the ultimate in hydration with 99.99% contaminant removal.
- • **Speed Meets Efficiency:** Enjoy 75 gallons per day, double the speed of competitors.
- • **Designed for Every Home:** Perfect for households of all sizes, ensuring everyone stays hydrated.
- • **Hassle-Free Maintenance:** Quick-change filters mean less time worrying and more time enjoying.
- • **Leak-Proof Peace of Mind:** Innovative leak protection keeps your home safe and dry.

## Overview

The Aquasure Premier 4-Stage Reverse Osmosis System delivers unparalleled water purification with a 4-stage filtration process that removes 99.99% of contaminants. With a capacity of 75 gallons per day and a leak-proof design, this system is perfect for households of all sizes, ensuring easy installation and maintenance.

## Description

Product description How often do I need to replace the filters in my RO system? It is recommended to replace Stage 1 Sediment, Stage 2 Carbon filters every 6-12 months and Stage 3 RO Membrane and Stage 4 Post Carbon filters every 18-24 months, depending on usage and water quality. How often do I need to replace the filters in my RO system? It is recommended to replace Stage 1 Sediment, Stage 2 Carbon filters every 6-12 months and Stage 3 RO Membrane and Stage 4 Post Carbon filters every 18-24 months, depending on usage and water quality. What is the ideal water pressure for this RO system? The ideal water pressure for our RO system is between 40-75 psi. If the water pressure is too low, the system may not function properly, and if it's too high, it could damage the system. What is the ideal water pressure for this RO system? The ideal water pressure for our RO system is between 40-75 psi. If the water pressure is too low, the system may not function properly, and if it's too high, it could damage the system. How much water does the RO tank hold and how long does it take to fill? Aquasure’s Premier Reverse Osmosis tanks have a capacity of 3 gallons. The time it takes to fill the tank will also depend on the size of the tank and the water pressure in your home. It takes about 1 hour to fill the tank. How much water does the RO tank hold and how long does it take to fill? Aquasure’s Premier Reverse Osmosis tanks have a capacity of 3 gallons. The time it takes to fill the tank will also depend on the size of the tank and the water pressure in your home. It takes about 1 hour to fill the tank. What contaminants does the RO system remove from the water? Aquasure’s RO system is designed to remove over 1000+ of harmful water contaminants such as total dissolved solids (TDS), chemicals, bacteria, viruses, lead, arsenic, fluoride, chlorine, and other impurities commonly found in water. What contaminants does the RO system remove from the water? Aquasure’s RO system is designed to remove over 1000+ of harmful water contaminants such as total dissolved solids (TDS), chemicals, bacteria, viruses, lead, arsenic, fluoride, chlorine, and other impurities commonly found in water. What are the benefits of having an RO system with a tank? An RO system with a tank provides the reliability and convenience of having purified water readily available whenever you need it, ensuring a continuous supply of clean water without waiting for the system to purify the water each time you need it. What are the benefits of having an RO system with a tank? An RO system with a tank provides the reliability and convenience of having purified water readily available whenever you need it, ensuring a continuous supply of clean water without waiting for the system to purify the water each time you need it. Compare Aquasure Reverse Osmosis Systems 75 GPD 4-stage RO System Alkaline 75 GPD RO System 100 GPD 4-stage RO System 100 GPD RO System + Pump

Review: Grate product. - It's pretty easy to install, water tastes good,pressure very nice, we have it for over a month and no leakage, fits right under our sink. Compact sizing.
Review: An upgrade to what is already great! (SEE VIDEO POST) - It’s been almost 5 years since I bought my last RO system from APEC and it has performed admirably during its 5-year run. I was really satisfied with the taste of the water and the way the system is built, but the effort of replacing the filter still leaves a lot of rooms for improvement. I started researching on another RO system and one of Aquasure’s ad popped up on my Facebook feed. A twist styled RO system that suppose to provide great water filtration with easy install and maintenance. Their website also goes into great details on why the system is an upgrade to the standard reverse osmosis systems that are on the market today. The whole package was very well thought out and everything seems to have its purpose in this well-constructed system. I decided to pull the trigger once again and bid farewell with my old faithful system. The system arrived nicely packaged and organized with 3 inner boxes that separate the system, the tank, and the accessories. unlike the standard RO, these filters are built into the housing and are already pre-installed along with their leak-proof safety mechanism. All I really need to worry about is to connect the supply tubings to the existing connection. The whole process took me no more than 10 minutes since the connections are all 1/4" which is the same as my previous RO, the only thing that I decided to change is the tank and the feed water adapter as I feel that the new feed water adapter that comes with the Aquasure System is much better. One other thing I notice is the fittings have built-in o-rings so I don't need to fiddle with Teflon tapes and trying to guess how much of it I need to apply. The system still supplied a row of Teflon tape which was odd to me, but I guess some people will find a use of it depending on their setups. Although my install was very easy due to existing connections already made on the previous RO, I still can see how the new system's design is more superior than the old one even for those that did not have an old setup. After flushing the first tank of water which takes about an hour to fill up. I conducted a simple TDS test that results in about 94% of TDS rejection, which is comparable to the previous system. The water tastes just the same as well with a tiny bit of sweetness to the water. Overall, I really like how the Aquasure System is packaged and how easy it is to change the filters. I really like my old RO system as well, but don't really missed the effort it takes replacing the filters and making sure that everything is tightened properly. The new RO system will be a welcome relief when its time for replacing its filters in the future. For those of you that are looking to buy and install your own RO system, this one is definitely worth to consider.

## Features

- 【 ADVANCED MULTI STAGE FILTRATION 】Enjoy the purest water possible with Aquasure's RO system. Our 4-stage filtration process includes a sediment filter, activated carbon filter, reverse osmosis membrane, and post-taste filter. Each stage work in tandem to remove 99.99% of contaminants, impurities, and odors, resulting in the highest level of water purity.
- 【 EXCEPTIONAL PERFORMANCE 】Our system uses a membrane with the highest purification precision at 0.0001 micron, effectively removing more than 1000+ kinds of harmful contaminants like Lead, Chlorine, Fluoride, Heavy Metals, Chloramine, VOCs, TDS, Arsenic, Heavy Metals, Bacteria, Virus, and more.
- 【 IDEAL FOR HOUSEHOLDS OF ALL SIZES 】With a low 1.5:1 pure to drain ratio, our RO system automatically fills your tank with high quality purified drinking water of up to 75 GDP (Gallons Per Day), 2X faster than other brands. Providing clean, healthy, and great tasting filtered water at all times.
- 【 EASY TO INSTALL & MAINTAIN 】Our innovative one-array system layout is designed for your convenience, ensuring that filter changes are quick and hassle-free with minimal effort. Our long-lasting filters also require less frequent replacements, saving you time and money.
- 【 LEAK-PROOF 】Our RO system has built-in shok-blok pressure spike prevention system and leak protection system to stop water from flowing when leaks are detected, and each individual filter stage is equipped with shut off valve when filter are removed. Have a peace of mind that your home or office is protected from potential water damage and minimizing water waste.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07D7GPFNV |
| Best Sellers Rank | #137,930 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #244 in Under-Sink & Countertop Filtration |
| Brand | Aquasure |
| Brand Name | Aquasure |
| Capacity | 75 G/day |
| Container Type | Faucet |
| Customer Reviews | 4.4 out of 5 stars 280 Reviews |
| Included Components | Reverse Osmosis |
| Installation Type | Under Sink |
| Item Dimensions L x W x H | 15"L x 15"W x 15"H |
| LowerTemperature Range | 33 Degrees Fahrenheit |
| Manufacturer | Aquasure |
| Material | Polypropylene |
| Material Type | Polypropylene |
| Model Name | AS-PR75A |
| Model Number | AS-PR75A |
| Other Special Features of the Product | Quick Twist Locking Filter |
| Part Number | AS-PR75A |
| Power Source | Manual (Water Pressure) |
| Product Dimensions | 15"L x 15"W x 15"H |
| Purification Method | Carbon Block, Reverse Osmosis |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Feature | Quick Twist Locking Filter |
| Supported Water TDS Level Maximum (PPM) | 1000 |
| UPC | 855864008002 |
| Upper Temperature Rating | 105 Degrees Fahrenheit |

## Product Details

- **Brand:** Aquasure
- **Special Feature:** Quick Twist Locking Filter
- **Product Dimensions:** 15"L x 15"W x 15"H
- **Package Information:** Faucet
- **Installation Type:** Under Sink
- **Purification Method:** Carbon Block, Reverse Osmosis
- **Power Source:** Manual (Water Pressure)
- **Model Name:** AS-PR75A
- **Lower Temperature Rating:** 33 Degrees Fahrenheit
- **Upper Temperature Rating:** 105 Degrees Fahrenheit

## Images

![Aquasure Premier 4-Stage Reverse Osmosis Under Sink Drinking Water RO Filtration Purification System | Removes 99% of Contaminants | 75 GPD, Leak-Proof, Quick Change Filters, with Tank & Chrome Faucet - Image 1](https://m.media-amazon.com/images/I/71XT6MHlYyL.jpg)
![Aquasure Premier 4-Stage Reverse Osmosis Under Sink Drinking Water RO Filtration Purification System | Removes 99% of Contaminants | 75 GPD, Leak-Proof, Quick Change Filters, with Tank & Chrome Faucet - Image 2](https://m.media-amazon.com/images/I/71xykB21ReL.jpg)
![Aquasure Premier 4-Stage Reverse Osmosis Under Sink Drinking Water RO Filtration Purification System | Removes 99% of Contaminants | 75 GPD, Leak-Proof, Quick Change Filters, with Tank & Chrome Faucet - Image 3](https://m.media-amazon.com/images/I/714Z2rj7jFL.jpg)
![Aquasure Premier 4-Stage Reverse Osmosis Under Sink Drinking Water RO Filtration Purification System | Removes 99% of Contaminants | 75 GPD, Leak-Proof, Quick Change Filters, with Tank & Chrome Faucet - Image 4](https://m.media-amazon.com/images/I/71icGHiYtCL.jpg)
![Aquasure Premier 4-Stage Reverse Osmosis Under Sink Drinking Water RO Filtration Purification System | Removes 99% of Contaminants | 75 GPD, Leak-Proof, Quick Change Filters, with Tank & Chrome Faucet - Image 5](https://m.media-amazon.com/images/I/71h8xEI-eWL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: How often do I need to replace the filters in my RO system?**
A: It is recommended to replace Stage 1 Sediment, Stage 2 Carbon filters every 6-12 months and Stage 3 RO Membrane and Stage 4 Post Carbon filters every 18-24 months, depending on usage and water quality.

**Q: What is the ideal water pressure for this RO system?**
A: The ideal water pressure for our RO system is between 40-75 psi. If the water pressure is too low, the system may not function properly, and if it's too high, it could damage the system.

**Q: How much water does the RO tank hold and how long does it take to fill?**
A: Aquasure’s Premier Reverse Osmosis tanks have a capacity of 3 gallons. The time it takes to fill the tank will also depend on the size of the tank and the water pressure in your home. It takes about 1 hour to fill the tank.

**Q: What contaminants does the RO system remove from the water?**
A: Aquasure’s RO system is designed to remove over 1000+ of harmful water contaminants such as total dissolved solids (TDS), chemicals, bacteria, viruses, lead, arsenic, fluoride, chlorine, and other impurities commonly found in water.

**Q: What are the benefits of having an RO system with a tank?**
A: An RO system with a tank provides the reliability and convenience of having purified water readily available whenever you need it, ensuring a continuous supply of clean water without waiting for the system to purify the water each time you need it.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Grate product.
*by O***. on March 23, 2026*

It's pretty easy to install, water tastes good,pressure very nice, we have it for over a month and no leakage, fits right under our sink. Compact sizing.

### ⭐⭐⭐⭐⭐ An upgrade to what is already great! (SEE VIDEO POST)
*by M***M on August 24, 2018*

It’s been almost 5 years since I bought my last RO system from APEC and it has performed admirably during its 5-year run. I was really satisfied with the taste of the water and the way the system is built, but the effort of replacing the filter still leaves a lot of rooms for improvement. I started researching on another RO system and one of Aquasure’s ad popped up on my Facebook feed. A twist styled RO system that suppose to provide great water filtration with easy install and maintenance. Their website also goes into great details on why the system is an upgrade to the standard reverse osmosis systems that are on the market today. The whole package was very well thought out and everything seems to have its purpose in this well-constructed system. I decided to pull the trigger once again and bid farewell with my old faithful system. The system arrived nicely packaged and organized with 3 inner boxes that separate the system, the tank, and the accessories. unlike the standard RO, these filters are built into the housing and are already pre-installed along with their leak-proof safety mechanism. All I really need to worry about is to connect the supply tubings to the existing connection. The whole process took me no more than 10 minutes since the connections are all 1/4" which is the same as my previous RO, the only thing that I decided to change is the tank and the feed water adapter as I feel that the new feed water adapter that comes with the Aquasure System is much better. One other thing I notice is the fittings have built-in o-rings so I don't need to fiddle with Teflon tapes and trying to guess how much of it I need to apply. The system still supplied a row of Teflon tape which was odd to me, but I guess some people will find a use of it depending on their setups. Although my install was very easy due to existing connections already made on the previous RO, I still can see how the new system's design is more superior than the old one even for those that did not have an old setup. After flushing the first tank of water which takes about an hour to fill up. I conducted a simple TDS test that results in about 94% of TDS rejection, which is comparable to the previous system. The water tastes just the same as well with a tiny bit of sweetness to the water. Overall, I really like how the Aquasure System is packaged and how easy it is to change the filters. I really like my old RO system as well, but don't really missed the effort it takes replacing the filters and making sure that everything is tightened properly. The new RO system will be a welcome relief when its time for replacing its filters in the future. For those of you that are looking to buy and install your own RO system, this one is definitely worth to consider.

### ⭐⭐⭐⭐⭐ Great tasting water, quality and value in one
*by P***R on August 12, 2025*

I've spent 3x as much on other sink RO systems in the past and this has been the easiest to setup with the best filtration. The water PPM went from 300+ to <4. It's extremely functional and so far haven't had any issues with it. No leaks - just remember to press those tubes if further than you think you need to.

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---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-05-28*