Replacing a shower-door bottom seal? Match the profile before the length

Start where the seal attaches

Does the existing piece grip bare glass, or does its narrow top sit in a channel along the door's lower frame? Photograph the accessible end without pulling the seal out. The outline viewed from the end is its profile; a front view of a long clear strip can hide that difference.

Prime-Line's M 6228, for example, has a tee-shaped top. CRL's one-piece bottom rail attaches over the bottom of the glass. These are different attachment designs, even when both are described as bottom sweeps. Include the enclosure brand, model and any original parts diagram; ask the supplier to confirm the replacement against that information.

Separate glass fit from the gap below

CRL's seal guide lists glass thickness and suggested gap as separate specifications, and expressly treats those clearances as guidelines for its hardware. A part fitting the glass does not, by itself, establish that its lower wipe suits the space above your threshold.

Ask the assessor to confirm these details before purchase. Provide measurements already in the product records; leave inaccessible or uncertain dimensions for the visit. Do not remove glass or loosen its hardware to measure.

• The seal's attachment profile and the glass thickness or frame-channel fit it requires.
• The length needed along the actual door bottom, including its ends.
• The clearance above the threshold, including any visible difference from one end to the other.
• Whether the door swings or slides, and where the existing strip catches or folds.

Include water direction and door movement

Some bottom assemblies include a projecting drip rail as well as a lower wipe. CRL describes its drip rail as directing water back into the shower. Have the installer check the selected part's orientation against its instructions; copying a previous installation is not proof that it was correct.

Agree that the completed work includes checking normal opening and closing, the seal's position and the reported water-escape symptom. Report existing scraping or a changed closing gap before the part is ordered. Do not force a catching door to demonstrate the problem.

Know when the request is bigger than a strip

Record where water first appears during ordinary use: beneath the door, at a lower corner, beside the frame or elsewhere. Include nearby staining and previous repairs. Those observations guide an inspection; they do not establish that the bottom sweep is the source.

Delta warns against using a shower panel that is chipped or appears damaged. Stop using damaged glass and arrange manufacturer or shower-door specialist assessment. Loose hardware, changed alignment or persistent water escape also needs review beyond selecting a seal.

Send Coast & Craft the model information, photos and symptoms for scope review. Confirm whether the accepted work covers seal replacement, further assessment or a specialist referral before a visit is arranged.