Affordable activated carbon air filter to replace LFX31925SW, LFX31925SB, LFX25991ST, LFX31945ST, LFX329345ST, LFX33975ST, LFX29927ST, LFX29927SW, LFX29927SB, LFX28968ST, LFX29945ST, LFX31935ST, LMX31985ST5ST, LMX31985ST, LMX31985 ... Keep your fridge fresh by reducing odors. Infused with carbon so odors are stopped in their tracks. Replace the air filter approximately every 6 months. Please note: This is a compatible spare part and the manufacturers' names and part numbers are for reference purposes only. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.