PUR FM-3333B Owner'S Manual Download Page 2

4 Adapters and Washers

Choose the one that’s  

right for your faucet

Filter is working Change filter soon End of filter life

STOP!

STOP!

Your PUR System

Filter Installation Instructions

What’s in the Box

Adapter Installation Instructions

Filter Change Light

Thank you for choosing PUR! Clean drinking water is the foundation  

of good  health. Our patented and certified water filtration systems  

with MAXION  Technology will transform your tap water into clean,  

fresh-tasting drinking  water. To learn more about PUR,  

please visit PUR.com.

1 PUR Device

1 Filter Cartridge

1

1

3

3

4

2

2

Remove your original  

aerator  and its washer.  

Use a rubber  jar opener  

if aerator is  difficult  

to remove.

For external threaded   

faucets, try adapter A.  

 If A doesn’t fit,  try  

adapter B

For internal threaded   

faucets, try adapter C.   

If C doesn’t fit,  try  

adapter D.

Choose your new adapter to  

match your  faucet threading.  

Be sure black rubber  

 washer is inserted   

into the threaded   

end of adapter.

A

B

C

D

External Threaded Faucets 

(all-metal adapter)

Internal Threaded Faucets

Finger-tighten your new adapter and washer to your faucet.

If the enclosed adapters do not fit, please do not return to store. 

Contact PUR for a free adapter that fits your faucet:    

PUR.com/support       

1-800-PUR-LINE       

[email protected]

Twist top cover off.

Insert filter into the device. 

 

(Don’t worry, the filter will fit loosely.)

Replace top cover.

Install the PUR device 

 with  1-CLICK.

“CLICK”

Indicates filter status and guarantees you will always have safer and healthier 

filtered  drinking water. Green light will flash 6 times as you begin to use the filter. 

Replacement  of filter cartridge resets the light. 
Filter change light changes color depending  

on how  long filter has been in use or how  

much water has  been filtered. Filter will  

reach end of life at 100+ gallons or 90+ days.
The filter change light contains a  

non-replaceable battery. The battery will  

eventually stop working but the filter is still functional.

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