Magnetic Shower Door Seal
Quick answer
A magnetic shower door seal is a matched pair of extrusions with embedded magnet strips: one half presses onto the door's closing edge, the mate onto the wall jamb or adjacent panel. When the door closes, the magnets pull the profiles together for a positive, gasket-like latch. Pairs come in 180° (door closes in line with a panel) and 90° (door closes against a wall) geometries — buy the pair that matches your angle and glass thickness, and always replace both halves.
Data reviewed:
What it is
Unlike passive flaps that merely cover the strike gap, magnetic seals actively pull the door closed the last fraction of an inch and hold it sealed. Most frameless doors that "click" shut use them. The two halves are mirror-profiles with opposite magnet polarity; mixing brands or replacing only one half leaves the magnets misaligned or repelling.
Use it when
- The door drifts open or does not latch, and water escapes at the closing edge
- An existing magnetic pair has torn strips, dead magnets, or yellowed vinyl
- You want a positive close on the handle side instead of a passive flap
What to measure
- Glass thickness of the door (and the panel, for 180° pairs)
- Closing angle: in-line with a fixed panel (180°) or against a wall (90°)
- Door height, since magnetic seals run full height and are trimmed from the bottom
Full walkthroughs: glass thickness · bottom gap.
Sizes in our reviewed catalog
| Glass range | Gap range | Lengths |
|---|---|---|
| 1/4″ | 1/8–1/2″ | 72″ |
| 3/8″ | 1/8–1/2″ | 72″ |
| 1/2″ | 1/8–1/2″ | 72″ |
Strengths
- Positive latch — the door pulls itself shut
- Seals a strike gap up to about 1/2″
- Full-height seal in one piece per side
Limits
- Both halves must be replaced together
- Angle (90° vs 180°) must match the door geometry
- Slightly harder to trim: magnet strip resists cutting
Magnetic seal options
As an Amazon Associate, we may earn from qualifying purchases. How this site is funded.
Magnetic Shower Door Seal Pair, 90 Degree Door-to-Wall, 1/4 in Glass, 72 in
- Glass
- 1/4″
- Gap
- 1/8–1/2″
- Length
- 72″
- Material
- PVC with embedded magnet strip
- Mount
- press-on
- Trim
- Cut to size
90° pair: one half on the door edge, mating jamb half on the wall. Replace both halves together.
⚠ Replace both halves of the pair at once — a new half against an old one misaligns or repels.
Magnetic Shower Door Seal Pair, 90 Degree Door-to-Wall, 3/8 in Glass, 72 in
- Glass
- 3/8″
- Gap
- 1/8–1/2″
- Length
- 72″
- Material
- PVC with embedded magnet strip
- Mount
- press-on
- Trim
- Cut to size
90° pair for doors that close against a perpendicular wall or return panel.
⚠ Replace both halves of the pair at once — a new half against an old one misaligns or repels.
Magnetic Shower Door Seal Pair, 180 Degree Door-to-Panel, 1/4 in Glass, 72 in
- Glass
- 1/4″
- Gap
- 1/8–1/2″
- Length
- 72″
- Material
- PVC with embedded magnet strip
- Mount
- press-on
- Trim
- Cut to size
180° pair for a door closing in line with a fixed panel. Trim from the bottom; cut the magnet strip with slow hacksaw strokes.
⚠ Replace both halves of the pair at once — a new half against an old one misaligns or repels.
Magnetic Shower Door Seal Pair, 180 Degree Door-to-Panel, 3/8 in Glass, 72 in
- Glass
- 3/8″
- Gap
- 1/8–1/2″
- Length
- 72″
- Material
- PVC with embedded magnet strip
- Mount
- press-on
- Trim
- Cut to size
180° inline pair; polarity is matched at the factory — do not mix with another brand's half.
⚠ Replace both halves of the pair at once — a new half against an old one misaligns or repels.
Magnetic Shower Door Seal Pair, 90 Degree, 1/2 in Glass, 72 in
- Glass
- 1/2″
- Gap
- 1/8–1/2″
- Length
- 72″
- Material
- PVC with embedded magnet strip
- Mount
- press-on
- Trim
- Cut to size
Heavy-door 90° pair with a wider channel for 1/2 in glass.
⚠ Replace both halves of the pair at once — a new half against an old one misaligns or repels.
Frequently asked questions
Can I replace just one side of a magnetic seal?
Not reliably. The halves are matched profiles with paired magnet polarity; a new half against an old one typically misaligns or holds weakly. Replace the set.
What is the difference between 90° and 180° magnetic seals?
Geometry. 180° pairs close a door in line with a fixed panel (flat closing plane); 90° pairs close a door against a perpendicular wall or return panel. The profiles are not interchangeable.
How do I cut a magnetic seal to height?
Trim from the bottom end with a fine hacksaw, cutting the vinyl and the embedded magnet strip together in slow strokes. Deburr the cut so it does not scratch the curb.