Great for household use, I would just install it under the sink in the kitchen due to ease, it doesn't require much skill to install in my opinion. Applicable water source: tap water. Filtration Accuracy: 0.01 microns.
eBay
ATWFS New Water Purifier 5 Stage Filter Cartridge 75 gpd RO Membrane Reverse Osmosis System Water Filters For Household
Aliexpress UK
With the tankless design, this reverse osmosis water filtration system can save space, and avoid the breeding of bacteria in the tank to avoid secondary pollution. Note that this reverse osmosis system requires under-sink electricity.
eBay
Quick connect 10 Inch T33 filter 2pcs fitting Water Purifier INLINE COCONUT Carbon Post WATER FILTER cartridge REVERSE OSMOSIS
Aliexpress UK
Push- fit connect.
eBay
Water Purifier 5 Stage Filter Cartridge 75 gpd RO Membrane Reverse Osmosis System Water Filters For Household
Aliexpress UK
Due to the fact that reverse osmosis is a 100% natural process, the filtration does not involve any chemicals. The unit is ideal for preparing perfectly clean soft and free of contamination drinking water.
eBay
50G 75G 100G 125G 150G 200G 300G 400G Reverse Osmosis RO Membrane Replacement Filters for Water Filtration Water Purifier Filter
Aliexpress UK
The filtered water is clear, soft and free of contamination. Due to the fact that reverse osmosis is a 100% natural process, the filtration does not involve any chemicals. - Capacity (at optimal conditions) 150GPD.
eBay
Xiaomi Water Purifier H400G Filter Element Set PPC Composite Filter Element RO Reverse Osmosis Filter Element H Series 400G
Aliexpress UK
Suitable for single filters or as pre-filter in twin systems, suitable for undersink, countertop, reverse osmosis unit and aquarium filter system.
eBay
Drinking Water Faucet for Kitchen Sink, Water Filter Faucet Stainless Steel for Reverse Osmosis or Water Filtration RO Faucet
Aliexpress UK
Faucet has a mounting range of ½”- 1 ½” for installation in a sink or countertop. 2 gallons wastewater will be produced for every gallon pure water. EASY&CONVENIENT -Streamlined DIY filter installation; fits most under sink cabinets, the ratio of pure water and waste water is 1:2.
eBay
Drinking Water Faucet for Kitchen Sink, Water Filter Faucet Stainless Steel for Reverse Osmosis or Water Filtration RO Faucet
Aliexpress UK
Reverse osmosis water filter 400 gallons of pure, filtered water. Will need to be plumbed in. Will give the purest filtered water. around 005 ppm. Paid 260 ish for this.
eBay
75/100/150/200GPD Home Kitchen Reverse Osmosis RO Membrane Replacement Water Drinking Water Purifier Filters Water Filtration
Aliexpress UK