Not the size the description says it is. The package contains 3 pieces that are 12"x30 3/4"x4". If you are expecting one piece don't get fooled, and the resin % isn't what they claim as being the highest.
we are lookiing for some 24x 24 drop in t bar cieling registers. that arent metal. They are for an indoor pool area that keep rusting. do you have w
You'll probably have to make your own. The manufactures rely on building parts that fail so you have to purchase the same poorly made parts again. I used a PVC sheet and stainless angle to make my own, never rust and easy to clean.