Frigidaire PAULTRA2 Refrigerator Air Filter (also referred to as PAULTRA-II) is designed to reduce odors commonly released by foods stored in fridges and freezers.No more onion smelling ice! No foul smells when you open your fridge!
PAULTRA2 - Replacement Cartridge contains a carbon activated air filter replacement. 
Approximate dimensions 4" x 2" x 1/2"
Recommended to be replaced every six (6) months.
No tools required for installation!