Do you own the 5-stage under-sink Aquasky ROT-4 reverse osmosis water system? It is crucial to use the appropriate replacement filters. These filters are made of natural organic cellulose and are specially designed to reduce bacteria, pesticides, herbicides, and heavy metals that may be present in your tap water by 99%. 
 
It's important to note that the RO membrane is the main stage in these systems, and the rest of the replacement filters serve as a means of protection for that membrane. If the pre-filters fail because of poor-quality replacement filters, the RO membrane may fail to deliver a 99% Reduction rate. 
 
Each set includes 4 filters and a membrane that require periodic replacement. Each filter represents a different stage in the purification process.
 
Typically, the pre-filters and post-filters in Aquasky RO systems can last from 8 to 12 months before needing replacement. This ensures your water is always pure, clean, and safe to drink.
 
Aquasky rot-4 replacement filters original organic cellulose for five stages under sink Aquasky rot 4 reverse osmosis water systems, 99% Reduction rate of bacteria, pesticides, herbicides, and heavy metals from tap water, the main stage in this system is the RO membrane.

Only the original organic RO membranes can last as long as 5 years
 
Stage 1-
The sediment filter is the first filter installed in the Aquasky rot-4 reverse osmosis water filter system.
The primary function of a sediment filter is to remove large and fine particles from drinking water, such as sand, dirt, silt, and rust particles. Removal of such particles allows for a better performance of all the following filters, such as carbon block or GAC filters.
Micron rating: 5 micron.
Dimensions: ( DXI 8.2 X 1/4 - 7/8") x 2.5"
Lifetime: please replace every year, depending on the water quality.

This filter is wrapped and sealed and meets NSF Standards and Regulations. The filter will fit any residential reverse osmosis unit that features standard 10" filter housing ( look for compatible systems list )

Stage 2-
Original organic activated carbon GAC filters are well-known for their highly efficient reduction of chlorine taste and odor.
Taste and odors of many organic chemicals and volatile organic compounds.
All GAC filters are made with organic, high-quality coconut shell carbon.
Micron rating: 5 Micron.
Dimensions: ( DXI 8.2 X 1/4 - 7/8") x 2.5"
Lifetime: please replace every year, depending on the water quality.

This filter is wrapped and sealed and meets NSF Standards and Regulations. The filter will fit any residential reverse osmosis unit that features standard 10" filter housing ( look for compatible systems list )

stage 3-
Organic original Activated Carbon Block Filters are made of fine coconut shell carbon to remove odors and tastes of many organic compounds and chlorine.
Because these filters are made of packed carbon (forming a cylinder block), they offer a much finer filtration of suspended particles and dirt.
Micron rating: 5 Micron.
Dimensions: ( DXI 8.2 X 1/4 - 7/8") x 2.5"
Lifetime: please replace every year, depending on the water quality.

This filter is wrapped and sealed and meets NSF standards and regulations. The filter will fit any residential reverse osmosis unit that features standard 10" filter housing ( look for compatible systems list )

Stage 4-
Original organic aquasky ROT-4 - 50 GPD NSF certified thin film TFC Membrane is the main component of Aquasky rot-4 reverse osmosis unit.
Made with 100% Organic fine thin film flat sheet
99% reduction rate of bacteria, pesticides, herbicides, and heavy metals from tap water.
Only the original organic aquasky rot -4 membrane has The micron rating of a thin film less than 1/10000th of a Micron, which is 620,000 times finer than A human hair, 2,500 times smaller than bacteria, and 20 Times smaller than any virus.


Product Features:
50 Gallons Per Day (15.8 -19.6 Liters per Hour) Capacity
99% stabilized salt rejection (minimum rejection 97%)
NSF/ANSI Standard 58 listed

Operating Conditions :
Performance specifications based on 500 ppm tap water, 50psi (0.35 MPa) applied pressure, 77°F (25°C) feed water temperature, feed water pH 7-8, and 15% recovery. Element permeate flow may vary ± 15%.
Maximum operation pressure: 125 psi (0.86 MPa)
Maximum feed flow rate: 2 gpm
Maximum operating temperature: 113° F (45° C)
Maximum feed water turbidity: 1 NTU
Maximum feed water SDI (15min): 5
Chlorine tolerance: 0
Feed water pH range: 2-11
Minimum brine flow to permeate flow ratio: 4:1


Stage 5-
The original organic Inline carbon filter for Aquasky rot-4 is known as a polishing filter because they are usually the last stage of any standard reverse osmosis circuit.
Made of high-quality coconut shell carbon, they stabilize the water-tasting qualities and remove any traces of bad taste and odors.
Dimensions: 10.7 " x 2.3"
Lifetime: please replace ones in 1- 2 years.


This filter is wrapped and sealed and meets NSF Standards and Regulations.