Originally Posted by float5
That one is 18" x 24". The area is 22" x 27". Guess there is no real reason to cover the entire area. Don't suppose it slips around. Nice low price.
Here is a photo of the $30 Amazon one in our 2017 21'
That I linked to.
I would call it a perfect fit.
No movement side to side, and a wee bit of space front to back.
Just slide it 2" to access floor valve / hair catch.
Not sure what area is "22" x 27" that you mentioned..... in a 2017 - 21'?