Figure 5
Figure 6
②
Faucet hose
Outlet hose
Faucet hose
Note:
If a female threaded connector is needed, please contact our service team for help.
Check the leaks and flush the filter
1. If water leakage occurs, turn off the water supply. If the water leakage is occurring at position 1 and 2,
wrap Teflon tape on the external thread. If the water leakage is occurring at position 3 or 4, insert the
quick-connect fitting to the end and make sure the hoses hit the bottom of the fitting.
2. Flush the filter for 5 minutes before use.
To disconnect
Use your thumb and index finger to press down on the lock sleeve. Use your other hand to pull out the
hose from the fitting.
Note:
Please do not pull out the tubing directly, or else it will damage the fitting and cause leakage.
Press
Pull
Press
Inlet hose
Cold
Hot
Outlet hose
Filter system
Faucet hose
1
2
3
4
Step 2: Connect the water supply (cold water only)
1. Connect the inlet hose and the outlet hose to the filter head. (Figure 1)
Note:
When the hose is tightly inserted, there will be a 1/8 inch gap between the hose and the filter
head, which is designed for easy replacement and won't affect the sealing performance.
2. Shut off the water supply. Remove the faucet hose. (Figure 2)
3. Connect the inlet hose to the cold water valve.
• If the angle valve outlet is 3/8”, it can be directly connected to the water supply. (Figure 3)
• If the angle valve outlet is 1/2”, connect it with a No.1 converter at first. (Figure 4)
Figure 3
Figure 1
Figure 4
Figure 2
3/8” outlet
1/2” outlet
Connect
①
to the cold angle valve
①
Step 3: Connect to the faucet
1. If the angle valve outlet is 3/8”, it can be directly connected to the water supply. (Figure 5)
2. If the angle valve outlet is 1/2”, connect it with a No.2 converter at first. (Figure 6)
Inlet hose
outlet hose
Installation of the filter system
Step 1: Fix the filter head and the filter
1. Paste the assistant label to finish drilling. (
Note
: Mount the water filter at
least 2 inches higher than the ground for easier filter change.)
2. Install the screw and reserve enough space to hang the filter.
3. Hang the filter system on the screw.
Direct Connect Undersink Water Filtration System
WD-UA system | Installation Instructions
Note:
1. If using well water as the source, please make sure the feed water has been through a pre-filtration system, otherwise,
large particles in well water will clog the filter easily and shorten filter life.
2. The above form lists model numbers of only black filters. Please note that the white filter is different from the black
filter only in color. They have the same filter material and filtration capacity.
3. Actual filter life varies according to local water quality.
Precautions
• Do not use it with water that’s microbiologically unsafe or of unknown quality without adequate disinfection.
• For use only with cold water.
• Do not freeze the filter, as this can cause cracking and water leakage.
• Do not allow children under 3 years old to have access to small parts during installation of this product.
• This installation must comply with all applicable state and local regulations.
• Turn off the water supply while replacing the filter.
Inlet hose
Outlet hose
Teflon tape
Filter head
3/8”-1/2” converter
Operating temperature
Working pressure
Flow rate
Filter capacity
2-38
℃
/35-100
℉
10-100psi (0.7-6.8bar)
0.75gpm (2.83lpm)
Specifications
System certified by WQA against NSF/ANSI Standards 42 for the reduction of the claims
specified on the Performance Data Sheet, and to NSF/ANSI 372 (≤0.25% lead).
Feed water requirement
Municipal tap water
WD-RF10/WD-RF10-UF/MZ/AK: up to 11,000 gallons
WD-RF15/WD-RF15-UF/MZ/AK: up to 19,000 gallons
WD-RF17/WD-RF17-UF/MZ/AK: up to 24,000 gallons
