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Window cranks / Prime-Line

Which Prime-Line seal do I have?

Your answers so far are below. Change any of them and the result updates.

brandPrime-Line
Which seal profile?

Compare the full linkage or the seal’s end-on cross-section.

1 candidate part

Matching 1 selected catalog fields. Check full dimensions, mounting and the source drawing before ordering.

Illustration of bottom seal, not this exact partIllustration
Candidate — verify fit

Prime-Line M 6258 Bottom seal · 3/8" glass

Part number M 6258

  • Shape / profileBottom seal
  • Glass thickness3/8"
  • Stock length36"

Confirm mounting, full dimensions and the supplier’s handedness drawing before ordering.

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Sizes from the images.orgill.com source, checked 2026-10-26.

What to measure

  1. Glass thickness: measure exposed glass, without the old plastic channel.
  2. Gap: measure between the bottom glass edge and the curb with the door closed. Check both ends.
  3. Profile: compare a cross-section of the original. A bottom drip-rail sweep and an H-wipe are different shapes.

What these results cover

This starter catalog contains 1 Prime-Line records for this family. An empty result means we do not have a documented match for those selections. It does not mean your part is unavailable.

Open a candidate’s record to inspect every sourced measurement and its original listing. Dimensions that have not been sourced are omitted.

Identify Prime-Line shower seal | PartMatch