• SIMBA 135A68S20 universal Y-profile seal shown on 8mm glass, providing a secure and transparent fit for 135-degree enclosures.
  • Detailed view of the flexible internal channel on 135A68S20, designed to accommodate both 6mm and 8mm glass thicknesses.
  • A 135-degree pentangle shower enclosure featuring the SIMBA 135A68S20 vertical seal for effective water redirection.
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6-8mm 135 Degree Y Shape Vertical Shower Seal Gap 3-18mm, 135A68S20

£29.99
£38.70 £29.99
Sold out
-23%
Taxes included. Shipping calculated at checkout.
Total Length: 2000mm
Gap: Seal 18mm

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Description

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Technical Specifications

Model: 135A68S20
Glass Thickness: 6mm / 7mm / 8mm glass
Angle Suitability: 135° (Diamond/Pentangle)
Profile Design: Flexible Y-Profile Shape Guard
Material: Ultra-transparent, UV-stabilised PVC
Length: 2000mm (Easily trimmed)
Fin Length: 20mm fin fit 3-18mm Gap
✓ Free UK Mainland Delivery | ✓ Price Includes VAT | ✓ 10-Month Warranty
If you have 10mm glass, please see our heavy-duty 135A10S20
135A68S20: Product Details & Performance

135A68S20: Adaptive Y-Profile Seal for Standard 6-8mm Glass

For homeowners and maintenance professionals managing standard-gauge enclosures, finding a balance between ease of installation and a secure fit is key. The 135A68S20 is an adaptive Y-profile vertical seal, specifically engineered to provide a consistent grip across 6mm, 7mm, and 8mm glass thicknesses.

Unlike fixed-gauge seals, the internal geometry of this profile is designed to flex. This allows it to slide onto 6mm glass with sufficient tension, while comfortably accommodating 8mm panels without the risk of cracking the profile during installation. It is an ideal replacement solution for the majority of 135-degree pentangle showers found in modern UK bathrooms.

The 20mm Y-fin acts as a sophisticated splash guard, bridging the corner gap to manage water spray effectively. Its high-clarity material ensures that the minimalist aesthetic of your glass enclosure remains uninterrupted, while the UV-stabilised PVC helps maintain transparency even with daily use in hard water areas.

 

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
SIMBA 135A68S20 universal Y-profile seal shown on 8mm glass, providing a secure and transparent fit for 135-degree enclosures.
6-8mm 135 Degree Y Shape Vertical..
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Simba Professional Care Guide

Ensure a perfect fit and a lifetime of clarity.

6-8mm 135 Degree Y Shape Vertical Shower Seal Gap 3-18mm, 135A68S20 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.