Vertical Fin Seal Pair - 4-6mm Glass, Fins 8-35mm

What these seals are

A pair of vertical fin seals for sliding shower doors with 4mm, 5mm or 6mm glass. Each rigid PVC U-section pushes onto the edge of the glass with no adhesive, and the soft side fin closes the gap — one seal on the fixed panel, one on the sliding door, so the two fins meet and stop water escaping where the door passes the panel.

The soft fin comes in seven depths from 8mm up to 35mm, in a choice of Clear, Chrome or Black to match your enclosure. If your existing fin is partially rigid and partially soft, these seals will still do the job.

Choose the right fin depth

With the door closed, measure the gap each fin needs to close, then pick the nearest fin depth from 8mm, 12mm, 15mm, 20mm, 25mm, 30mm or 35mm. If your gap sits between two sizes, choose the larger fin — the flexible blade compresses to fit and gives a tighter seal.

Specification

Why fit these seals

Stops leaks between panel and door. Worn or missing fins let water escape where the sliding door passes the fixed panel. A fresh pair closes the gap along the full height of the door.

Seven fin depths, one profile. Whether your gap needs an 8mm fin or a 35mm fin, the same clip-on U-section with the right fin depth closes it neatly.

No adhesive, no mess. Each U-section grips 4–6mm glass on its own — the seals push straight on and come off again without leaving residue.

A finish to match your enclosure. Choose Clear, Chrome or Black so the seals blend in with the rest of your door furniture — select a finish above to see it.

Fitting in three steps

1. Measure. Check your glass is 4–6mm thick, measure the height of the door edges, and measure the gap the fins need to close with the door shut.

2. Choose. Pick your fin depth, finish and length — 2000mm or 2500mm — then cut down at home or use our cut-to-exact-length service.

3. Fit. Remove the old seals, trim the new pair to height, then push each U-section onto the glass edge, starting at one end and working along. Never slide a seal along the glass — pushing it on section by section protects both the seal and the glass edge.

Not sure it fits?

Email a photo of your old seal or your measurements to sales@industrial-polymers.co.uk and our UK team will confirm the right profile, fin depth and length before you order — usually the same working day.