I came to this site to find a replacement part b/c the plastic interior of the handle cracked only to find multiple reviews with the same issue. Like most I had a contractor install, so it's not the depth, it's the cheap plastic quality that is clearly an issue. I just had to pay more in shipping than the part to get it replaced. From what i've read, they should sell this part in bulk since it breaks frequently. Either that, or actually replace this part with a more durable piece. This was not cheap and it's very disappointing to know this is a known issue.