8–10mm Glass H-Shape Vertical Shower Door Seal – 20mm Fin H810S20
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Description
Description
Technical Specifications
Is This the Right Seal?
The H810S20 is made for 8–10mm frameless shower glass where the side gap is too open for a short fin.
Use this seal if:
- Your glass is 8mm, 9mm or 10mm thick
- The side gap between the door and fixed glass panel is around 3–18mm
- 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
- A shorter fin would not sit close enough to the opposite panel
- The length you need is 2000mm or less
Before ordering, close the shower door and measure the side gap where water is getting through. This 20mm fin is best used where the gap needs more contact, but the door still has enough room to open and close freely.
This is not the right seal if:
- Your glass is thinner than 8mm or thicker than 10mm
- The gap is below 3mm or above 18mm
- 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 side gap is only small, a shorter fin vertical shower seal strip may sit more neatly on the glass.
Product Overview
The H810S20 is a clear push-fit side seal for 8–10mm frameless shower glass. It is used where a thicker glass door leaves a more open side gap against the fixed panel.
The 20mm soft fin gives extra contact across the opening, helping to reduce spray escaping from the side of the shower door. It is best used where a short fin would not sit close enough to the opposite panel.
The clear PVC channel pushes onto the bare glass edge without adhesive, screws or silicone.
After fitting, open and close the shower door slowly. Check that the fin does not catch, fold back, or stop the door from closing freely.
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
What type of shower gap is H810S20 made for?
H810S20 is for a side gap between an 8–10mm frameless shower door and a fixed glass panel. It suits gaps that are more open than a close-fitting glass-to-glass join, but still within the approximate 3–18mm range.
Can I use H810S20 on 6mm glass?
No. H810S20 is made for 8–10mm glass. The channel is too wide for 4–6mm glass and may not grip the glass edge securely.
Does a 20mm fin always give a better seal?
No. A 20mm fin is only useful when the side gap needs the extra reach. If the gap is small, a shorter fin can look tidier and may move more cleanly when the door opens and closes.
Can this seal be used on a sliding shower door?
No. H810S20 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 glass.
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.
- Choosing a selection results in a full page refresh.