Specification:
FEED WATER PRESSURE: 40 - 100 PSI
TEMPERATE:40-110°F/5-45°C
PH:3.0 -11.0
MAX TDS :2000 PPM
TURBIDITY <1.0 NTU
MAX SDI <4.0
HARDNESS <5 GPG
IRON <0.1
MANGANSESE <0.05
Shelf life: 3Years
Warranty: 1year limited warranty

More valuable information:
✪What is dimension of installed Geekpure RO5?
RO unit: Length 14.20 inch, Width 6.2 inch, Height 18.1inch.
Storage tank: Diameter 9.45 inch, Height 14.4inch.
weight:27.32lb
✪What is 5stage filter and function?
the 1st stage: PP spun filter, Remove sand, dirt, sediment.
the 2nd stage: Granular carbon filter, Remove chlorine, taste & odors, very fine particulates
the 3rd stage: Carbon block filter, Further remove chlorine, taste & odors, very fine particulates
the 4th stage: TFC Ro membrane, Reduce 99% total dissolved minerals, heavy metal, Arsenic, Mercury, Iron, lead ,Fluoride and 1000+ contaminants .
the 5th stage:Post inline acid washed coconut carbon filter, Polish water for refined taste.
✪Where can I buy replace filters?
Please search B07BGXTY3B and B0BZ8B8ML6 via Amazon.
✪What is in the box?
1 complete set Ro water purifier and extra 4 free replacement filters for at least 2 years use.
✪BPA free?
Yes, BPA free ,Lead free faucet and food grade materials.

Note:
1.It Is Recommended to Wait Until the Entire System Is Pressurized (Including Storage Tank&Faucet) and Re-Check for Any Leaks Before Leaving Installation Site.
2.It Is Normal for Some Black Carbon Fines to Appear in The Water When Emptying the First 2 Tanks of Water. The First 2 Tanks of Water Produced Should be Emptied and Not Used.
3.Push the Tubing All the Way in and Use Teflon Tape During Installation.