Enjoy Pure, Refreshing Water Daily

Install Reverse Osmosis Water Filters in Katy, TX, and the Greater Houston area

In Katy or Montgomery, you can transform your kitchen with a tankless reverse osmosis water filter system from Bigstar Water Filtration Service. Imagine never having to buy bottled water again, as the Pure Water Machine delivers a complete 5-stage water treatment and purification system. The water quality is often superior to bottled water, offering you the best-tasting water for cooking and preparing your favorite drinks. Coffee will taste better than ever!


Our high-efficiency systems are designed to fit seamlessly into your home, providing multiple benefits. You can enjoy peace of mind knowing that your water is purified to the highest standards. With our installation and repair services, maintaining your reverse osmosis system has never been easier. Katy residents trust us for our expertise and commitment to quality.


Our reverse osmosis system produces up to 400 gallons of purified water per day while monitoring filter lifespan and measuring water purity before and after filtration. On average, the filters last 2–3 years before needing replacement.



Secure your reverse osmosis system installation today.

Under-sink reverse osmosis water filtration system: white tank, filters, and tubing inside a cabinet.

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White water filtration system under a sink, connected to plumbing and red tubing.

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Key Benefits of This Service

Our reverse osmosis systems are designed to deliver exceptional water quality for your home. With a focus on efficiency and reliability, we ensure that your system operates at its best. Here are some key benefits:

Water filter system with three filters.

Complete 5-stage water purification

A water filter system with three cartridges, each with a water droplet icon.

Taste enhancement for cooking and beverages

Water filter with three canisters, each containing a water droplet.

High-efficiency, tankless design

Water filter with three cylindrical cartridges.

Professional installation and repair services

Water filter with three cylindrical canisters, each with a water drop icon.

Long-term cost savings on bottled water

Plan your installation with us for a healthier home.

Diagram of a water filtration system with five stages: sediment, carbon, carbon, reverse osmosis, and post-carbon filter.

Stage 1

5 Micron polypropylene sediment pre-filter to extract suspended materials such as sediments, rust, insects, and other particles down to 5 microns.

Stage 2 & 3

Double carbon block filters absorb heavy chlorine and chlorine by-products such as chloramine, THM, and TCE. The double carbon briquettes filter out organic matter from water without releasing carbon fines. The carbon block prepares water to enter the reverse osmosis element.

Stage 4

High rejection (95-99%) Thin Film Composite (TFC) RO membrane 50 GPD to reject a wide spectrum of impurities including Total Dissolved Solids (TDS), heavy metals, bacteria, and viruses.

Stage 5

In-line Coconut Shell GAC filter is used to remove dissolved gases, bad taste, and odor from product water. This is the polishing stage before consumption.