Give holes and windows a professional finish with u-channel.
1/4 wide U-channel molding is easy to install. No glue or tools needed. Covers dangerous sharp edges or ugly hole cuts.
Pricing is 3 feet @ $3.99, 6 feet @ $4.99 and 12 feet @ $9.99
1-140mm fan hole requires 16.5" piece of u-channel
1-120mm fan hole requires 14.5" piece of u-cha...