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Rockwool cube plug

Rockwool cube plug

thingiverse

This is a plug designed to close any open holes in a CropKing NFT channel with 1"x1" rockwool cutouts or really any 1"x1" rockwool sized cutout. This will keep algae from growing and foreign material from getting into the channel. I printed mine in TPU but I think any material will work ok.

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