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Built to last. Made to seal. Backed by real bathroom proof.

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NOTE: Our product is currently out of stock — expected to be available for sale on 20th September 2025.

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4mm-6mm Glass H Shape Seal Gap 3-23mm H456S2025

£3.48

~~£7.19~~ £3.48

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Lengths: Sample 25mm Sample 25mm 2000mm

Gap: Seal 3-23mm Seal 3-23mm

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Description

Key Features

Catalog No.: H456S2025
Fits Glass: 4mm / 5mm / 6mm
Gap Coverage: 3–23mm with 25mm soft fin
Position: Vertical – door sides
Install: Push-on, no tape or glue
Material: Flexible, durable PVC
Colour: Clear – blends with glass
Trim to Fit: Cut easily with scissors
Warranty: 10 months
Returns: 30 days

Not sure if it fits?Send us a photo of your door and measurements — we’ll recommend the right seal for free.

Order now and keep your bathroom floor dry from day one.

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4mm-6mm Glass H Shape Seal Gap..

Get to know the Seal

No more flimsy seals

our thicker design won’t warp, crack, or give up after a few showers.

Clear as glass

so your beautiful bathroom stays the star, not a yellowing strip.

Soft fins, no squeaks

smooth closing every time, with zero noise or resistance.

“Hear From Users”

Key Information About Shower Door Seals

Great question!

Each SIMBA seal is made for a specific gap.

If the gap’s too small, the fin bends and wears out faster.

If it’s too wide, water can leak.

We test every seal to make sure it fits perfectly

Please check out our guides:

“All type of shower door seal replacement”

Many people make common mistakes when using them.

We’ve listed them all – check out “Mind the Gap: 11 Common Shower Door Seal Slip-Ups” so you can avoid them.

In that case, an adhesive bath seal is a better fit.

It’s easier to apply in tight spaces and still gives great protection.

Yes, we have a detailed guide to cutting shower seals.

All SIMBA products come with a 30-day return policy and a 10-month warranty.

If you’re not satisfied, we’ll give you a refund.

If you are unsure about the suitability of a product, we strongly recommend that you order a sample, as the cost of returning a seal is usually higher than the cost of the product itself.

All prices include VAT and standard UK mainland shipping.

Discover what makes a shower door seal strip truly high quality

More options for your shower doors than ever...

We’re the makers – and we’re always listening.

Because we manufacture our own seals, we’ve got the flexibility to improve and adapt our designs.

If you notice anything during use – big or small – we’d love to hear your feedback.

Let’s build something better, together.