This new Hydrophilic Treatment is being offered to prevent your flute from wetting out and stop playing.
To test this I went outside into 33 degree weather and played for a half an hour and I couldn't make the flute stop playing. I had water pouring out from the front of the block but it just kept singing like normal.
This would be good for those players that tend to play on the wet side or for those that would like to play their flute in a cool or wet area like a cave or by a stream or even on a cold evening.
The photo's below show the Hydrophilic Treatment, which
is an 1/8" thick base, that can be applied to any block.