channel filter

14 LETTERS · STARTS WITH C

channel filter is a valid 14-letter word worth 21 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3H4A1N1N1E1L1F4I1L1T1E1R1

3 + 4 + 1 + 1 + 1 + 1 + 1 + 0 + 4 + 1 + 1 + 1 + 1 + 1 =21 PTS

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does channel filter mean?