• "Profile view of the V456S2023 walk-in shower seal fitted on 4–6mm glass, featuring a symmetrical transparent U-channel with side guide rails and an extra-long central 23mm fin designed to bridge wide floor gaps effectively."
  • "Technical dimension diagram of the V456S2023 strip, specifying the precise 4–6mm channel width, the maximum 23mm reach of the centrally positioned fin, and complete profile measurements for accurate fitting."
  • SIMBA bottom sealing strip compared to other brands' sealing strips
  • Why choose SIMBA shower seals: 30,--- uses tested, Quality rubber material, reach certified, and UK fast delivery
  • "Macro close-up of the V456S2023 transparent body, showcasing superior light transmission and a mirror-like gloss finish that ensures the seal remains virtually invisible against clear glass."
  • "Installation orientation guide for the V456S2023 seal, clearly indicating 'Inside' and 'Outside' directions to ensure the central 23mm fin is angled correctly towards the wet area for maximum water containment."
  • Application guide for the shower seal
1 9

4-6mm Walk-In Shower Door Bottom Seal 23mm Fin V456S2023

£14.88
£20.88 £14.88
Sold out
-29%
Taxes included. Shipping calculated at checkout.
Total Length: 950mm
Gap: Seal 23mm

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Description

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professional solutions for your shower door

Technical Specifications

Catalog No. V456S2023
Glass Thickness 4mm / 5mm / 6mm (Universal)
Gap Sealed 20mm – 23mm (Problem Solver)
Fin Depth 23mm Extra-Long Dual-Action Fin
Installation Push-on (No tape/glue required)
Package 1x Strip + FREE D510 Threshold
Free UK Shipping | VAT Inc. 10-Month Warranty
Need another size? Check our full shower door bottom seal collection for 4mm, 5mm and 6mm alternatives.

Frequently Asked Questions

Is the V456S2023 right for me? +
This is our "Ultimate Reach" seal. If your shower door was installed unusually high, or if your floor has a significant slope leaving a gap of 20mm to 23mm, this is the only seal designed to bridge that distance.

Not the right size?
Do I really need the Free Threshold Strip (D510)? +
For extreme gaps, the answer is Yes. When a gap is over 20mm, water pressure at the bottom is at its highest. Using the 23mm seal in tandem with the D510 Threshold creates a professional-grade "Lock-Gate" system.
Will this handle high-pressure showers? +
Absolutely. The V456S2023 features a massive 23mm ultra-flex fin designed to deflect heavy water spray across extra-wide gaps.
Will it turn yellow over time? +
No. Our seals are crafted from Ultra-Clear, Anti-UV PVC. It is engineered to resist discolouration and maintain transparency even in sunlit bathrooms.
Is it easy to install without tools? +
Absolutely. This is a Snap-On seal. The rigid U-channel uses friction to grip the glass securely. No messy silicone or tape required.
What about where this seal meets my side (vertical) seal? +

Choosing the right fin length is key. Our guide answers your questions:

  • The Sizing Rule: Is 16mm right for your gap?
  • Installation Order: Vertical vs. bottom seal sequence.
  • Maintenance: How to inhibit black mould growth.

Get the perfect fit: The V456S2023 Specialist Guide: Measuring & Fitting for Large Gaps →

Delivery & Shipping Information

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We aim to dispatch all orders placed before 2 PM on the same day. Orders placed after 2 PM usually ship the next working day.

Important: Our automated system selects the best courier based on your address, order size, and quantity.

Delivery Summary

  • UK Mainland Standard: 2–3 working days (FREE).
  • Highlands, Islands & NI: 3–7 working days (Calculated at checkout).

A small surcharge applies to remote areas (Highlands/Islands/NI). This is clearly calculated when you enter your postcode.

If your order hasn't arrived within 5 working days (any service), please email us immediately at info@showerdoorseal.uk.

Compliance Information

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Product Safety

Manufacturer Name: SIMBA International Limited

Address:No.25-2, Fuke North Road,

Luosong Village, Fusha Town,

Zhongshan, Guang Dong, China

Contact: support@glassseals.com

View full details
"Profile view of the V456S2023 walk-in shower seal fitted on 4–6mm glass, featuring a symmetrical transparent U-channel with side guide rails and an extra-long central 23mm fin designed to bridge wide floor gaps effectively."
4-6mm Walk-In Shower Door Bottom Seal..
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Simba Professional Care Guide

Ensure a perfect fit and a lifetime of clarity.

4-6mm Walk-In Shower Door Bottom Seal 23mm Fin V456S2023 Installation Guide - Simba Anti-Mould Shower Seal

✓ DO’S

  • Direct Press: Fit by pressing directly onto the glass edge to protect the surface.
  • Deep Clean: Remove all UK hard-water limescale before installation.
  • Sharp Tools: Use garden pruners for a clean, professional finish.
  • Daily Rinse: Simply wash away soap suds after your shower.

✕ DON’TS

  • No Sliding: Never slide the seal along the glass; this risks scratching.
  • No Extreme Heat: Avoid water >70°C or hair dryers to prevent warping.
  • No Soapy Water: Do not use lubricants—they accelerate mould growth.
  • No Harsh Chemicals: Avoid bleach or acidic cleaners on the seal.

Quality & Environmental Standards

Simba® seals are manufactured to the highest international standards, ensuring safety and sustainability for your home.

ISO 9001:2015 Quality Management

ISO 9001:2015

Premium quality control ensuring consistent product durability and precision fit.

ISO 14001:2015 Eco-Friendly

ISO 14001:2015

Manufactured with a commitment to environmental responsibility and eco-friendly processes.

SVHC REACH Compliant

SVHC / REACH

Certified non-toxic and safe for domestic use, free from harmful substances.

Installation & Maintenance Support

Unlike standard recycled strips, this profile is engineered with our signature UV-stabilised formula to prevent yellowing and brittleness.

Learn more about the science behind our High-Performance PVC Durability and why it outlasts high-street alternatives.

See why and how to Protect your seals from limescale.

SIMBA shower screen seal, Premium Clarity. Flawless Fit.

Can’t Find the Right Seal?

As a leading manufacturer, SIMBA stocks over 9,000 styles. From vintage screens to modern doors, we’ve got you covered.

Stuck on which one to pick? Drop us a message. We’re here to help you get that perfect, water-tight fit!

Need guide installing this seal?

We're the SIMBA makers, and we're always listening.

Since we design and make our own seals, we can actually do something about it.

If you spot anything that could be better—no matter how small—we’d genuinely love your feedback. Let’s make the next version perfect, together.