New to SIMBA? Try our ultra-durable shower door seals

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

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4-6mm Glass Magnetic Seal 17/20mm Gap 4BMX135

£3.48

~~£7.19~~ £3.48

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Lengths: Sample 100mm Sample 100mm 2000mm

Gap: Seal 17mm Seal 17mm Seal 20mm

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Description

Versatile Use:

180° glass-to-glass doors: Seals 20mm gaps
135° corner connections: Seals ~17mm gaps

Key Features:

Catalog No.: 4BMX135
Glass Thickness: 4, 5, or 6mm
Mounting Position: Vertical – glass-to-glass magnetic connection
Material: Rigid PVC with powerful magnetic core
Color: Clear
Installation: Push-on, no tape or glue needed
Trim to Fit: Cut easily with scissors
Warranty: 10 months
Returns: 30 days
Pack: Includes 2 magnetic strips for a complete installation

Pro Tip: Measure precisely before installation for the best magnetic seal and leak-free performance.

Order now to keep your sliding shower doors sealed and leak-free from day one.

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4-6mm Glass Magnetic Seal 17/20mm 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.