Skuttle humidifier filter manufactured by Handi-Plumb by John M Frey Company. Part No P3757.

We measured the body length at 10" and diameter 2" (the plasitic section). Both ends are threaded 1/8" NTP female. Included with the filter are the brass couplings for a compression fit with 1/4" copper tubing.

Best granular activated carbon available:

   √ Removes objectionable taste and odors
   √ Reduces chlorine
   √ Stops sand, dirt, rust, down to 10 microns
   √ Produces 3/4 gallons per minute
   √ Service life of 1500 gallons

As shown in our photo above.