Product review (2 stars): Trane replacement water panel BAYPAD02A1310A
This panel is the correct size, except it is thinner than the Trane original and is not as efficient.  It requires much more water to work close to the original.  Cheaper to buy  but costlier to operate.  One must consider the cost of water, which isn't that cheap here.
Even though this filter will work don't be fooled, pay a little more and get the panel recommended by Trane.
I can not recommend this product.