Geekpure 4 Stage Portable Aquarium Reverse Osmosis RO Drinking Water Filtration System 100 GPD - with DI Filter TDS Close to 0 ppm

Easy to install, works perfect. Drain/clear water 50/50 so good for this cost, minimal leak and it was for the adapters (99.99% solved using Teflon), in about 9h 38 gal of clear water delivered, so it’s a real 100 GPD system.

Jan 20th 2026, I am ordering my 3rd unit for my master bath room. Oldest unit is 4 years old and works great, cheaper than buying the filters! CONTRARY to other reviews this unit is very fast but you may need a pressure tank. Excellent product! Great ro unit, flow rate and recovery higher than more expensive systems, works better with a tank. I have 2 units now! One in my home and one in my rv. Needs on/off control as it runs all the time without shutoff. I used a 13 volt solenoid in rv and pressure regulator in home.

First class. Best in price and performance. Not my first RO system, but the best I've owned. It takes my city water from 8+ pH to 6.0-6,2 with a TDS near ZERO and it makes over 20 gallons in just a few hours. Just have to supplement the minerals with "Replenish" and adjust the levels to your needs. Don't replace old spent $$ filters on your old RO System, step up and replace the whole system as a unit.

I love these filters. Great value for money and with a sink faucet adapter I use it to make my own reverse osmosis water. If you only use it for drinking they last for years without needing replacement according to my TDS meter. Just put it in your sink in the bathroom when filtering water so there are no spills and put the dirty water in the sink as well. Then I put the water jug in the shower/bathtub so that if I forget and it overflows in doesn't spill water. See how long it takes for the jug to fill with clean water and set an alarm. This is the most portable and easy installation and takes like 15 seconds to start to fill water and put the filter away after.

DO NOT BUY THIS PRODUCT USED. I received a system that had been previously used and returned filled with water in the original box. The box was filled with parts out of bags along with garbage such as cut zip ties. The box and instructions were damaged by water. The hose cutter was missing. The product received was greatly degraded and the lower price for a used product did not compensate.

Liked the fact that hey Siri water with 20 ppm works well yet slowly. Took about an hour to make five gallons of water. Works well for what I use it for.

I recently installed this water purification system, and it has exceeded all my expectations. After extensive research, I chose this system to address the quality of my well water, which contains significant sediment. To ensure the best results, I pre-filter my water at the pump using a series of sediment filters before it reaches the Geekpure purification system at my sink. The results are impressive. When I tested the purified water, it consistently showed 000 ppm, indicating absolutely no dissolved solids. The water is crystal clear, with no detectable flavors or odors. It's refreshing to finally have pure, clean water straight from the tap. The system is easy to install and maintain, and its performance has been consistently reliable. This purification system has significantly improved our water quality to the point I do not need to purchase gallons of purified water from the store, and I highly recommend it to anyone dealing with well water.

Product was purchased to supply pure water to salt water aquariums. It was well priced for the volume of filtered water I need. Assembly and installation was pretty simple and it was up and running in a few minutes. Some of the hoses from one filter component to another seemed a little stressed to me, but none of the connections are leaking. A less rigid hose material might be better suited to some of the shorter runs from filter to filter. I liked the different colored hoses for inlet, waste and pure water. The filter I replaced had all white hose so it was a little more difficult to figure out the function of the various hoses.

Hola soy de la ciudad de México , mi experiencia con este filtro de ósmosis es la siguiente: El primer día instale el filtro según el manual , pero me generó un garrafón de agua de 20 litros con TDS en 0 en 22 hrs , instale una bomba ( en México se les llama presurizador ) y funciona mucho mejor , logré generar 20 litros con TDS en 0 en 2:30 hrs . Conclusión: funciona tal y como se menciona en la descripción, pero si tienes que tener instalado una bomba de presurizacion para su correcto funcionamiento

Simple and easy installation. Very good results.

Installation un peu laborieuse, mode d’emploi très sommaire. Résultat apparemment concluant.

Der Filter ist qualitativ hochwertig, ich habe ihn in nur 10 Minuten installiert. Das Wasser schmeckt sehr gut und hinterlässt keinerlei Rückstände im Wasserkocher

Très bon rapport qualité prix. Certe la notice n'est pas en Francais mais tout est prémonté, les dessins sont explicites. très bon rapport de 1:1,5 donc relativement peu de perte ! et 5l d'eau osmosée en 10 min... l'eau "sale" sert à arroser les plantes... 0 ppm en sortie pour le moment ! manquerait un circuit de rinçage mais vu le prix.... pour débuter c'est parfait et ça change la vie de mes bacs !