Tankless under sink RO system $120

[terracore]

Not a personal endorsement, just a bargain I found today:

• High Performance: 600 GPD & 2:1 Waste Ratio: Capable of producing 600 gallons per day, this system provides fast and robust water flow which can fill a cup of water in just 9 seconds. The remarkably low 2:1 waste ratio means that for every 2 gallons of pure water only 1 gallon of wastewater is produced. This is 8 times less waste water than traditional 1:4 undersink RO systems, saving you money on the water bill and protecting the environment's natural resources.
  
  
• Premium Filtration: USWF-2F-600 provides highly effective filtration with a dual cartridge design. 1st Stage is a 2-in-1 Composite Sediment/Carbon pre-filter that removes sand, silt, rust, chlorine, and VOCs to improve taste and protect the RO membrane. 2nd Stage is the Reverse Osmosis Membrane which removes more than 1,000 impurities including TDS, PFAS, fluoride, arsenic, nitrate, lead and other heavy metals to provide clean great tasting drinking water.
  
  
• Smart Design & Easy Install: The sleek minimalist design measures only 5.5" W x 14.75" H x 17.3" D takes up less than half the space of a system with a traditional water tank. Designed for easy hassle-free installation it comes with color coded water lines, adaptable feed water supply which fits both 3/8" and 1/2" plumbing, and step-by-step DIY instructions so you can set the system up in 30 minutes or less.
  
  
• Quick Change & Smart Filter Monitoring: Filters can be changed in just 3 seconds with a simple twist and pull. An integrated shutoff valve stops the flow of water as soon as a filter is removed so you won't have to crawl under the sink to turn off the water supply. The system monitors usage and the LED smart faucet lights up to indicate when a filter change is required. The 1st stage lasts 1,000 gallons or 12 months, and the 2nd stage lasts 2,000 gallons or 24 months.
  
  
• Next Generation Features: The system includes an integrated internal water-way to eliminate seals and connections where leaks can occur. This system automatically flushes the RO membrane with filtered water after use, which not only greatly extends the life of the RO membrane, but also prevents TDS creep. Flushing the membrane after each use ensures you get fresh filtered water in every glass.
  

https://www.amazon.com/dp/B0C6YF3447?&linkCode=ll1&tag=pw016-20&linkId=9a39b8aea42c00923ab70113a9b91ced&language=en_US&ref_=as_li_ss_tl

$329-$100-$115.50 = $119.88

Click "Apply $100 coupon" before adding to cart.

At checkout enter coupon code "ROFILTER2023" for additional $115.50 off

I don't know how many coupon codes are available, but it worked in my cart.