Castle Bay BlueFresh Pro UF(Ultra Filtration)5-stage Water Filter System 
reduces common drinking water contaminants, replenishes natural minerals, and 
produces great tasting natural spring water quality. 
 
Castle Bay BlueFresh Pro-UF is a filtration process which utilizes 
trans-membrane pressure differential to separate particles according to 
molecular weights. The ultra filtration will remove high molecular-weight 
substances, colloidal materials, and organic and inorganic polymeric molecules. 
Low molecular-weight organics and ions such as sodium, calcium, magnesium 
chloride, and sulfate are not removed. 
 
BlueFresh 5-Stage Ultra Filtration System 
Stage 1: PP Fiber Filter (5?m) 
Stage 2: Granular Active Carbon Filter 
Stage 3: Activated Carbon Block Filter 
Stage 4: UF Membrane Filter 
Stage 5: Post Active Carbon Filter 
The Advantages of BlueFresh PRO-UF (Ultrafiltration) 
Constant high quality water production guaranteed 
Operational convenience: the procedure adapts automatically to the quality 
of the raw water 
No chemicals are used during operational phase 
No risk of dangerous by-products 
Low investment and operational costs 
Compact systems that facilitate integration into the surroundings 
Environmentally friendly 
 
BlueFresh Pro- UF water filter system removes the harmful contaminants from 
water and keeps the naturally healthy minerals that consist of mainly calcium, 
magnesium, potassium, and sodium. 
Calcium is the most abundant mineral in the body, and about 99% of the 
body's calcium is found in our bones. The mineral calcium is crucial to maintain 
normal bone density. Intake of calcium in sufficient amounts helps strengthen 
the bones and prevent development of bone diseases like osteoporosis. 
Magnesium is well known for its calming effect on our nervous system, as 
well as its stimulating effect on the immune system .This mineral boosts the 
immune system, thereby helping to fight infections effectively. 
Sulfate acts as a detoxifying agent and helps to cleanse the body 
thoroughly. 
Iron is very important as it rejuvenates the skin, thereby improving 
physical appearance. Iron is crucial to transport oxygen effectively to all the 
body cells, as well as improve energy levels of the body. 
Potassium is critical in maintaining proper electrolyte and acid - alkaline 
balance. Potassium plays a fundamental role in cellular exchanges. Potassium 
deficiency may lead to poor energy, lack of strength as well as cramping. A diet 
that contains sufficient amounts may reduce the risk of high blood pressure and 
stroke, as well as soothe feelings of anxiety, irritability and stress. 
Sodium is an electrolyte that plays a crucial role in maintaining blood 
pressure. Along with potassium, it regulates uids and acid-base balance in the 
body. It is also involved in nerve transmission and muscle contraction, 
including the heartbeat. 
 
Castle Bay BlueFresh PRO-UF Drinking Water System utilizes hollow fiber 
membrane technology and includes an easy install kit. The under-counter filter 
is simply connected to the cold water pipe and filtered water is available 
straight from the dispenser. The system comes with quick-change filter 
replacements technology. Simply twists each individually contained filter into 
its place with no mess!