Bifold Shower Seal - 5mm T-Head, 13mm Tall, Seals 8-13mm Gaps

What this seal is

A clear channel seal for bifold shower doors and bath screens, with a 5mm T-head that slots into the channel in your door frame and a 13mm overall height that closes gaps of 8mm to 13mm. The soft PVC blade flexes against the tray, bath or adjacent surface to keep water inside the enclosure.

Fit it horizontally along the bottom rail of a bath screen or shower door, or vertically on the glass upright — the T-head simply slides into the channel with no adhesive.

Which height do I need?

Your channel slot should be 5mm wide (possibly slightly narrower). This 13mm-tall version seals 8–13mm gaps — smaller gaps suit our 8mm-tall version of the same T-head, and larger gaps the 17mm or 24mm versions. If your gap sits between sizes, choose the taller seal — the flexible blade compresses to fit.

Specification

Why fit this seal

Stops leaks along the bottom rail. A hardened or shrunken channel seal is a common cause of water tracking under a bifold door and onto the floor. A fresh blade closes the 8–13mm gap and protects flooring and skirting.

No adhesive, no mess. The T-head slides into the channel your old seal came out of — no glue, no drilling — and slides out again when next due a change.

Easy to cut at home. The soft PVC trims cleanly with scissors, so cutting a 2000mm length down to your door width takes seconds.

Part of a family. The same 5mm T-head comes in four heights, so if this size isn’t quite right there’s almost certainly one that is.

Fitting in three steps

1. Measure. Check the channel slot is around 5mm wide, measure the gap you need to close (8–13mm for this version) and the length of the rail or upright.

2. Choose. Pick 1000mm or 2000mm — whichever is at or above your measurement — or select a Custom Cut option for your exact length.

3. Fit. Slide out the old seal and wipe the channel clean, trim the new seal to size with scissors, then feed the T-head in at one end and slide it across until flush.

Not sure it fits?

Email a photo of your old seal’s end profile or your measurements to sales@industrial-polymers.co.uk and our UK team will confirm the right T-head width and height before you order — usually the same working day.