If you're wondering how to fill gap between shower surround and drywall, C.R. Laurence has the shower door gap filler to pair perfectly with your shower h bar. Shower Online bathroom design tool makes it easy to elevate any bathroom design with a frameless shower header and pocket hole filler. CRL's large selection of shower hardware helps streamline your search for the right shower header, shower hinge, adapter block, shower door header, shower gap filler, header brackets, and more shower door parts.