Amazing machine and awesome customer service

I got my reverse Osmosis from Home Depot.

Easy self-installation.

Correct parts and low price.

Perfect fit!

I got this replacement set for my iSpring filter. As expected, everything was a perfect fit. Hardly anything came out when I pre-washed the carbon filter. Water continues to taste great!

Incompatible 5th stage fittings

I bought the set to service a 5-stage system (RO-100) bought from the same maker. The cartridges fit well as usual, but it is impossible to connect the faucet and tank tubing. That tubing is 3/8 inch while the new 5th stage cartridge and the included hardware are only compatible with 1/4 inch tubing.

iSpring / 123Filter review

I needed a RO system to supply 'clean' water to my ultrasonic humidifiers - I was trying to get away from the 'white dust' that Lake Michigan water leaves behind.

Work Great

We have had the system for a year now and the filters work great. Our water is clear and tastes good. Thank Ispring for making an awesome product.

iSpring RO systems are the very best!!!!

We have had any iSpring RO water filtration system for almost 6 years now. It reduced our hard water from 400 parts per million down to 20 parts per million! These filter replacements will keep our system going for another 6 years, plus! Best investment we have every made!!

Water purification

Purchased 5 stage RO system firm iSpring (123Filter.com), system arrived in short order totally complete and with full instructions. Got it working in no time. Totally satisfied. Had one small problem, talked to Nick in customer service and had it rectified immediatly. Totally recommend product and service.

these are replacement cartridges for a system i just installed...what...

these are replacement cartridges for a system i just installed...what review can I give you!? They are still in the package and will be for another 6 months! :-)