4–6mm Glass H-Shape Vertical Shower Door Seal – 25mm Fin H456S2025
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Description
Description
Product Video
Technical Specifications
Is This the Right Seal?
The H456S2025 is the maximum-coverage seal in the 4–6mm glass range. It is the option to choose when the side gap between two frameless glass panels is too large for the smaller fin sizes.
Use this seal if:
- Your glass is 4mm, 5mm or 6mm thick
- The side gap between the glass panels is around 3–23mm
- Your shower door is hinged or pivot-style
- The seal will fit onto a straight, exposed glass edge
- You need a vertical side seal, not a bottom seal
- You have already checked that a shorter fin will not give enough coverage
- The length you need is 2000mm or less
Before ordering, close the shower door and measure the gap where water is escaping. This is the largest fin in the 4–6mm range, so it is worth choosing only when the side gap genuinely needs the extra coverage.
This is not the right seal if:
- Your glass is thinner than 4mm or thicker than 6mm
- The gap is below 3mm or above 23mm
- Your shower door is sliding, bi-fold, framed
- You are replacing a bottom door seal
- The gap is between glass and wall, glass and tray, or inside a shower track
- A metal frame, trim or rail covers the glass edge
- You need a magnetic seal, drip seal, threshold seal or sliding door seal
If the gap is not especially wide, a shorter-fin vertical seal may sit more neatly and allow easier door movement.
Product Overview
The H456S2025 is a clear push-fit shower door seal for 4–6mm frameless glass. It is the largest side-gap option in this thin-glass range, made for shower doors where the two glass panels sit noticeably further apart.
The 25mm soft fin is useful where the gap is large enough that a shorter fin would leave part of the opening exposed.
The clear PVC channel pushes onto the bare glass edge without adhesive, screws or silicone.
Because this is the longest fin in the range, check the door movement carefully after fitting. Open and close the door slowly to make sure the fin does not catch, curl back, or stop the door from closing properly.
This seal is intended for straight frameless hinged or pivot shower doors. It is not suitable for sliding doors, framed enclosures, folding doors or curved glass.
FAQ
When should I choose H456S2025?
Choose H456S2025 when your 4–6mm frameless glass has a large vertical side gap and the smaller fin options do not reach far enough. It is the largest coverage option in this thin-glass side seal range.
Should I choose the 20mm or 25mm fin?
Choose the 25mm fin only if your side gap needs the extra coverage. If the gap is within approximately 3–18mm, the 20mm version may sit more neatly.
Will the 25mm fin cover any wide shower gap?
No. This seal is made for gaps of approximately 3–23mm. If the gap is wider than this, the fin may not sit properly against the opposite glass panel.
Can I use this on a sliding shower door?
No. H456S2025 is for straight, exposed frameless glass edges on hinged or pivot shower doors. It is not made for sliding door overlaps, framed doors, folding doors or curved screens.
Delivery & Shipping Information
Delivery & Shipping Information
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
Compliance Information
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
Notified by email when this product becomes available
Care & Installation Tips
Ensure a better fit and longer-lasting clarity.
✓ 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.
Not sure which seal you need?
Send us a photo of your shower door edge and gap — we’ll help you find the right fit.
About SIMBA Seals UK
SIMBA Seals UK is a specialist UK shower door seal replacement brand, backed by a glass seal manufacturing team focused on seal profiles since 1998.
Through showerdoorseal.uk, we help customers find the right replacement seal by checking the glass thickness, gap size, seal profile, frame channel and shower door design.
Our range covers common bottom, side, magnetic and framed shower door seals. For older or harder-to-match enclosures, our wider catalogue includes over 9,000 glass seal profiles, giving customers more options when a standard seal is difficult to identify.
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