The Geekpure 3-Stage Reverse Osmosis drinking water filtration system is specially designed for aquariums, laboratory testing, and other applications where ultra-pure water is necessary. The system comes with a set of specific requirements for optimal performance:

Work Condition: - FEED WATER PRESSURE: 40 - 100 PSI (If less than 40 psi, a booster pump must be added, or else you cannot get any pure water) - TEMPERATURE: 40-110°F/5-45°C - pH: 3.0 -11.0 - MAX. TDS: 1000 PPM - TURBIDITY < 1.0 NTU - MAX SDI <4.0 - HARDNESS < 5 GPG - IRON <0.1 - MANGANESE <0.05 - Shelf life: 3 Years

Disadvantages: 1. The system cannot work on and off automatically. 2. The flow rate is very low, not the same as tap water. It produces approximately 4.2 gallons of pure water per hour under the following conditions: feed water pressure of 70 psi, work temperature of 77°F or 25°C, and NaCl concentration of 250 ppm with a recovery rate of 15%. The product water capacity and pure water quality may vary depending on the temperature, water pressure, and feed water quality. 3. The pure water cannot be stored for more than 1 day, and the feed water valve must be opened when water is needed.

If you can accept these 3 points, the Geekpure 3-Stage Reverse Osmosis system can be used in various applications, including apartments, RVs, business travel, vacations, yachts, boats, and mobile homes, where pure water is required.

Smart Size: - Product Dimensions: Length 14.80 inches, Width 9.2 inches, Height 3.2 inches - Product weight: 4.8 lbs

High Efficiency: - Reduces Total Dissolved Minerals, Arsenic, Lead, Mercury, Fluoride, Cadmium, and more - Filter fineness down to 0.0001 micron - Pure water capacity: 100 gallons per 24 hours (test conditions: feed water pressure of 70 psi, work temperature of 77°F or 25°C, NaCl concentration of 250 ppm, recovery rate of 15%) - The actual water capacity may vary depending on the work conditions

Tankless: - No electric, tank, faucet, or plumbing required - Easy to install and replace filters

Q&A: - Dimensions of the installed Geekpure RO-100G-4 system: RO unit - Length 14.80 inches, Width 9.2 inches, Height 3.2 inches, Weight 4.8 lbs - 4-stage filter and function: 1. PP spun filter - Reduces sand, dirt, and sediment 2. Carbon filter - Reduces chlorine, taste, odors, and fine particulates 3. TFC RO membrane - Reduces total dissolved minerals, Arsenic, Mercury, Iron, Lead, Fluoride, and more 4. DI filter - Reduces total dissolved minerals after RO water - Replacement filters can be purchased on Amazon using the ASIN numbers B07KHWKVCS and B09NPRN4KJ - The box includes the RO unit, diverter valve, wrench, RO tubes, clips, drain clamp, and Teflon tape

Note: - Flush the filters for 30 minutes before using the system to feed your aquarium. - It is normal for some black carbon fines to appear when flushing the carbon filter. - There is no tank, faucet, or high/low pressure switches, so the system cannot work on and off automatically. If you want to add these extra parts, please contact the seller.

product information: