What is NOT supplied - originally there was asaddle valve included to attach to the copper mains inlet water pipe (using the blue tube). While the saddle valve sounds like a great idea they are only successful if the copper is of the hard type - more normal types of copper pipe are too soft and so the saddle valve will deform the pipe before piercing it allowing leakage to occur.
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BROVA 1000G Reverse Osmosis Water Filtration System High Flow Rate Direct Drinking Water Purifier Intelligent real-time TDS det
Aliexpress UK
Reverse Osmosis is a technology that is used to remove the large majority (98%+) of contaminants from water. Reverse Osmosis Systems wastewater to make water should be done at high pressure as the water is being forced through microscopic holes which catch contaminants.
eBay
Water Filter Purifier Faucet, Lead-Free Filtered Faucet Fits Reverse Osmosis Units or Water Filtration System Kitchen RO Faucet
Aliexpress UK
(Total dissolved solids – TDS). Our multi award winning reverse osmosis water purification devices, encompass the latest technology in RO purification. Aura water filtration devices use Reverse Osmosis technology to provide you the convenience of high quality drinking water at the turn of a tap.
eBay
Water Filter Faucet, Lead-Free Purifier Filtered Faucet Fits Reverse Osmosis Units or Water Filtration System Kitchen RO Faucet
Aliexpress UK
Your Finerfilters Tankless Reverse Osmosis drinking water system produces less waste water vs a traditional reverse osmosis unit. All while saving you space under the kitchen sink vs a traditional R.O. unit.
eBay
Water Purifier Faucet, Lead-Free Filtered Faucet Fits Reverse Osmosis Units or Water Filtration System Kitchen RO Faucet
Aliexpress UK
It appears to be unused. Upon inspection, I noticed a few issues likely caused during an attempted installation. You can perform a temporary setup without fully installing it under your sink to test it.
eBay
Water Purifier Faucet, Lead-Free Filtered Faucet Fits Reverse Osmosis Units or Water Filtration System Kitchen RO Faucet
Aliexpress UK
𝐈𝐦𝐩𝐫𝐨𝐯𝐞𝐝 𝐬𝐚𝐟𝐞𝐭𝐲 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞: Waterdrop has upgraded the water circuit and product integration design, thereby improving product safety. Also, the G2 P600 RO water filtration system has automatic water shut-off valves, which reduces the risk of leakage.
eBay
Water Purifier Faucet, Lead-Free Filtered Faucet Fits Reverse Osmosis Units or Water Filtration System Kitchen RO Faucet
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
1set 75 Gpd Reverse Osmosis Water Pump System Water Filter System Water Purifier Parts Include Osmosis Membrane Filter Aquarium
Aliexpress UK
Clear water: Reverse osmosis water filter system with PPC & RO filter and tap. PureLine 400 water filter system reverse osmosis 400 GPD 1500 L/d. But don't worry: the PPC filter lasts up to one year and the RO filter up to two years, depending on the contamination of the source water and the use of the system.
eBay
400/600gpd Water Purifier Reverse Osmosis System Pure Water Machine Reverse Osmosis Water Filter Automatic Flush Aquarium System
Aliexpress UK