• Profile view of the D456S7 bulb seal fitted on 4-6mm glass, illustrating the transparent U-channel grip and the soft, compressible bulb top designed to accommodate surface irregularities in bottom or side positions.
  • Technical dimension diagram of the D456S7 strip, specifying the 4-6mm inner channel range and the bulb height intended to bridge gaps up to 7mm, suitable for diverse sealing requirements on sides or bottoms.
  • Macro close-up of the D456S7 transparent bulb, highlighting the smooth, high-gloss surface and the flexible material structure that offers gentle compression against adjacent surfaces.
  • High-resolution detail of the D456S7 U-channel body, showcasing consistent wall thickness for secure retention on 4-6mm glass panels, combined with optical clarity for a discreet appearance.
  • Application view of the D456S7 seals installed on two adjacent glass panels, demonstrating how the soft bulbs meet to form a continuous barrier, suitable for double-door configurations or side-to-glass interfaces.
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4-6mm Glass Bulb Seals Gap 7mm D456S7

£14.88
£21.00 £14.88
Sold out
-29%
Taxes included. Shipping calculated at checkout.
Total Length: 950mm
Gap: Seal 7mm

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Description

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Technical Specifications

Catalog No. D456S7
Glass Thickness 4mm / 5mm / 6mm
Gap Suitability 4mm to 7mm
Installation Push-fit (No Adhesives)
Length 950mm / 2000mm Clear Strip
Material UV-Stabilised PVC
Profile Design Compressible Bulb
✓ 10-Month Warranty | ✓ 30-Day Returns | ✓ Free UK Shipping | ✓ VAT Inc.

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Detailed Description

Calibrated for Gentle Closure & Effective Sealing
The D456S7 is engineered with a High-Resilience Bubble Geometry, specifically developed to offer a subtle "soft-close" feel for 4-6mm glass doors. This compressible profile helps create a reliable watertight barrier by adapting to the contact surface, reducing mechanical resistance.
Material Integrity & Shape Retention
Utilising eco-friendly, virgin medical-grade PVC, this seal is designed to maintain its structural form over time. By avoiding impurities found in recycled plastics, the profile offers enhanced shape memory—helping the bulb return to its original state after compression.
Versatile Alignment for Modern Enclosures
The flexible U-channel provides a secure, friction-based fit on narrower glass widths. Its adaptive bulb is particularly useful for bridging minor surface inconsistencies or serving as a cushioned meeting point for double-door configurations.
Maintenance & Long-term Performance
To support long-term clarity, ensure the internal cavity remains dry through adequate ventilation. This is an effective way to manage UK hard water challenges and slow the natural development of mould.

Frequently Asked Questions

Is this model suitable for my glass thickness?
This specific profile is calibrated for 4mm, 5mm, and 6mm glass. For thicker architectural glass (8mm or 10mm), we recommend our D08 or D10 series, which feature wider U-channels to ensure a flush fit.
Can this be used for pivot, sliding or bifold doors?
Yes. The compressible nature of the bulb design makes it a practical choice for pivot hinges and bifold screens where a traditional protruding fin might obstruct the door’s natural motion.
How do I achieve a bespoke fit?
The PVC material is formulated for easy customisation. It can be precision-trimmed using a sharp utility knife or heavy-duty shears to match the exact height of your shower enclosure.

Looking for another style or configuration?

Explore our full range of Professional Shower Door Vertical Seal Strips to find the perfect match for your bathroom project.

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 D456S7 bulb seal fitted on 4-6mm glass, illustrating the transparent U-channel grip and the soft, compressible bulb top designed to accommodate surface irregularities in bottom or side positions.
4-6mm Glass Bulb Seals Gap 7mm..
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Simba Professional Care Guide

Ensure a perfect fit and a lifetime of clarity.

4-6mm Glass Bulb Seals Gap 7mm D456S7 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.