3M Filtrete 3US-PS01, Installation And Operating Instructions Manual

6.  Referring to the “Using Push-In Fittings” section, insert the 

blue tubing into the faucet adapter fitting, 

making sure the 

end of tubing is firmly seated.

Hold the filter head assembly away from the wall, press 
other end of tubing into outlet side as indicated by arrow 
on filter head assembly. (see Figure 4A)

7.  Take the remaining tubing, slip the compression hex nut 

and 3/8

"

 ferrule onto the tubing (position the tapered end 

of the ferrule away from the hex nut) and put in the tube 
insert (See Figure 5). Fasten this assembly tightly onto 
3/8

"

 cold water supply outlet (See Figure 6). Pull on tube 

to make sure a good connection has been made.  Connect 
other end to the inlet side of the filter head assembly as 
indicated by arrow (see Figure 4B).

8.   Place filter head assembly holes over mounting screws 

and press down to lock into place. Tighten the screws for a 
secure fit.

9.  Insert filter in filter head assembly. Turn filter one quarter 

turn to the right until it stops. When fully engaged, the top 
surface of the filter will be flush with the bottom of the filter 
head assembly. The color label will face forward.

10. Turn on water and open faucet to flush air from the 

system. 

Run water for a minimum of 5 minutes to flush 

out air. Check for leaks.

Close sink faucet. The system is now ready for use.

Note: White tube from head is pressure relief outlet.

Inlet

Outlet to

Equipment

B

A

Figure 4

INSTALLATION INSTRUCTIONS (CONTINUED)

FILTER CARTRIDGE REPLACEMENT INSTRUCTIONS

1.  Place pan under filter to collect any residual water during cartridge change-out.

2.  Grasp cartridge and turn to the left (counterclockwise) until cartridge comes to a complete stop (water 

automatically turns off). Gently pull cartridge downward to remove.

3.  Ensure that o-rings are present on the cartridge and are seated into grooves; moisten o-rings with 

water. DO NOT use any petroleum products to lubricate the o-rings.

4.  Align tabs of new filter cartridge with existing filter head and insert new filter cartridge into head. Turn 

cartridge to the right (clockwise) until cartridge stops.

5.  Flush new cartridge for 5 minutes.

TROUBLESHOOTING GUIDE

Figure 5

Figure 6

Water Leaks at Push-In Connections:

Push tubing in as far as it will go. If leaking continues, shut off water at the original valve and remove water line 
by pushing in on the connector collar while pulling the tubing away. Inspect tubing for cracks and scratches. If 
tubing is cracked or scratched, simply cut that portion away and reinsert tubing into push-in fi tting.

Make sure tubing is cut straight. If not, recut.

If water leaks, please verify that the o-ring is properly seated in its groove.

Water Does Not Flow From The Drinking Water System Faucet:

Check to see if the main water line valve is open, allowing water to fl ow to the fi lter.

Water Appears Cloudy or Air Comes Out of the Drinking Water System Faucet:

Flush fi lter for a full fi ve (5) minutes to remove any carbon fi nes or trapped air in the fi lter and water lines.

CAUTION: To reduce the risk of property damage due to water leakage, change disposable fi lter 
at least every six months. 

CAUTION