Dometic S4 Sliding Window (Various Sizes Available)
Dometic S4 Sliding Window (Various Sizes Available)
Dometic
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Short Description
The Dometic Seitz S4 Sliding Windows are a proven complete window system for motorhomes, caravans and van conversions. With a sliding opening design, built-in darkening blind and flyscreen, double acrylic glazing and a secure locking system, they offer a practical balance of ventilation, insulation and privacy in one high-quality unit. Their sliding format is especially useful where external clearance for an outward-opening window is limited. The S4 range is supplied ready to install and is designed for wall thicknesses of 26 to 41 mm.
Important: The Dometic Seitz S4 windows are designed for flat wall installations only and are not suitable for curved body panels. Please check your vehicle panel shape and aperture requirements before ordering.
Key Features
- Multiple width x height sliding window sizes available
- Designed for motorhomes, caravans and van conversions
- Sliding opening design with adjustable front pane and fixed rear pane
- Built-in darkening roller blind and flyscreen
- Blind and flyscreen can be clipped together for easier one-handed adjustment
- Double acrylic glazing and insulated frame construction for strong thermal performance
- Security locking / safety catch system helps prevent the window being opened from the outside
- Suitable for wall thicknesses of 26 to 41 mm
- Ready-to-install complete window system
- Ideal where an outward-opening window is less suitable
Product Description
The Dometic Seitz S4 Sliding Windows are a well-established choice for customers building or upgrading a motorhome, caravan or campervan. The S4 range is designed as a complete sliding window system with an integrated roller blind and flyscreen, combining ventilation, privacy and insulation in one neat installation.
Unlike the top-hung version, the sliding format uses an adjustable front pane with a fixed rear pane, making it a practical option where external opening space is limited or where a more compact side window arrangement is preferred. This makes the range especially well suited to many van conversion, caravan and motorhome layouts.
The integrated darkening blind and flyscreen help create a more comfortable interior in a wider range of conditions, and the two can be clipped together for simpler one-handed adjustment in day-to-day use. A security catch also helps prevent the window from being opened from outside.
The S4 range is also valued for its double acrylic glazing and insulated frame construction, helping improve thermal performance compared with more basic single-pane vehicle windows. Supplied as a complete ready-to-install window system for wall thicknesses of 26 to 41 mm, it offers a more refined and OEM-style solution for touring vehicles and conversions.
With multiple sizes available, the Dometic Seitz S4 Sliding Window range offers a flexible solution for a wide variety of vehicle layouts. It is especially well suited to conversions where integrated blinds, insect protection and a clean, finished appearance are important.
Size Guide
| Size Variant | Width | Height |
|---|---|---|
| 700 x 400 | 700 mm | 400 mm |
| 700 x 450 | 700 mm | 450 mm |
| 900 x 450 | 900 mm | 450 mm |
| 1100 x 450 | 1100 mm | 450 mm |
| 1200 x 600 | 1200 mm | 600 mm |
Specifications
| Feature | Specification |
|---|---|
| Product Type | Sliding wall window |
| Brand | Dometic |
| Model | Seitz S4 |
| Available Sizes | Various |
| Opening Style | Sliding |
| Sliding Configuration | Front pane adjustable, rear pane fixed |
| Glazing | Double acrylic glazing |
| Integrated Blind | Yes |
| Integrated Flyscreen | Yes |
| Locking System | Security / safety catch system |
| Wall Thickness Suitability | 26 - 41 mm |
| Typical Applications | Motorhomes, caravans, van conversions |
| Installation Note | Flat wall installation only |
ABOUT US
ABOUT US
Last updated: December 11, 2025

Hi, I'm George — and with me in the picture is Ella. This was taken near the top of Ben Hope, the most northerly Munro in the UK!
GOTCHU was built from a simple belief that great adventures deserve great equipment & the right gear can completely change your experience outdoors.
After many trips exploring the UK — from the rugged coastline of northern Scotland to the vast landscapes of the Highlands — sometimes with the right gear and ofter with the wrong gear. We realised finding equipment that was reliable, well-designed, and genuinely built for real-world adventure wasn't always straightforward. So we decided to build a place that focused on exactly that.

Who’s Behind GOTCHU?
Well, Us! We’re outdoor enthusiasts first — the business simply grew from that passion.
Whether it's hiking remote trails, exploring the NC500, camping on the coast, or chasing views in the Highlands, adventure is a big part of our lives.
The experiences we’ve had outdoors shapes the products we choose to sell.
If it isn’t something we’d trust on our own trips, it doesn’t make it onto the site.
This hands-on approach means every product is chosen with intention — focusing on durability, usability, and performance where it actually matters.

Why We Started GOTCHU
We noticed that a lot of outdoor gear retailers had become either; mass-market catalogue stores or overly niche boutiques — We wanted something in between.
A place where you could confidently buy equipment knowing it had been carefully selected, properly sourced, and backed by people who actually use it.
We’ve curated a wide range of outdoor products in one place so you don’t have to jump between multiple websites.
And if you ever feel like a product is missing or would make a great addition to the store — please reach out and let us know.

Our Approach
We work closely with UK-based manufacturers, distributors, and specialist suppliers to source equipment that meets our expectations for:
- durability
- performance
- usability
Everything in our catalogue is selected deliberately.
Our goal isn’t to sell everything — it’s to sell the right things.
Equipment that earns its place on your next trip.

Adventure should be exciting — not stressful because your equipment lets you down.
That’s why we built GOTCHU.
Reliable gear.
Carefully chosen.
Backed by people who actually use it.
Trust us — we gotchu.
Every product we sell is something we’d happily take on our own trips.
GOTCHU Ltd is a small independent business built by two outdoor enthusiasts who believe great gear makes better adventures.

DELIVERY & RETURNS
DELIVERY & RETURNS
Last updated: December 11, 2025
Delivery
We ship within the United Kingdom using trusted suppliers and specialist fulfilment partners. Estimated delivery times vary depending on the product and supplier, but lead times are clearly shown on each product page.
Because some items ship directly from different UK partners, orders may occasionally arrive in separate deliveries.
Returns
If you need to return an item, please review our Return & Refund Policy for full details regarding eligibility and timeframes. If you’re unsure whether a product is suitable before purchasing, feel free to contact us and we’ll be happy to help.
More information
For full delivery details, including estimated lead times and shipping conditions, please see our Shipping Policy.
FAQs
FAQs
Frequently Asked Questions
Click THIS LINK to understand how your order is processed.
Where do you ship?
We currently ship within the United Kingdom only. This allows us to offer clearer delivery expectations, faster lead times, and more reliable customer support.
How long will my order take to arrive?
Delivery times vary depending on the product and supplier. Estimated lead times are clearly shown on each product page. Once your order has been dispatched, you’ll receive confirmation and tracking details where available.
Why do delivery times vary between products?
Some items are shipped directly from specialist UK suppliers or manufacturers, while others require additional handling or preparation. Factors such as product size, availability, and delivery location can affect lead times. We aim to be transparent and provide realistic estimates at all times.
Will my order arrive in more than one delivery?
In some cases, items within the same order may be shipped separately. This usually occurs when products are supplied by different UK partners. If this applies to your order, you’ll be notified.
Can I return an item?
Yes. If you need to return an item, please review our Return & Refund Policy for full details, including eligibility and timeframes. If you’re unsure whether a product is suitable before purchasing, feel free to contact us for guidance.
What if my item arrives damaged or faulty?
If your order arrives damaged or develops a fault, contact us as soon as possible with your order number and photos where relevant. We’ll work quickly to resolve the issue in line with your statutory consumer rights.
Do you offer warranties?
Many of our products include manufacturer warranties. Warranty details, where applicable, are listed on the product page or provided upon request.
How can I contact you?
For product questions, order support, or general enquiries, please use our Contact Us page or email us directly. We aim to respond promptly and provide clear, helpful support.
How do you choose the products you sell?
We work with UK-based manufacturers, distributors, and specialist suppliers and select products based on durability, performance, and real-world usability. As outdoor enthusiasts ourselves, we prioritise equipment we would genuinely trust and use.
Do you offer discounts or price matching?
We focus on fair, transparent pricing rather than short-term discounts. If you have a question about pricing or availability, feel free to get in touch.
Can I change or cancel my order?
If you need to amend or cancel an order, contact us as soon as possible. Once an order has been processed or dispatched, changes may not be possible.

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BUILT FOR REAL ADVENTURE
GEAR YOU CAN TRUST ON AND OFF THE ROAD.
GOTCHU DELIVERS RUGGED, RELIABLE EQUIPMENT FOR OVERLANDING, WEEKEND CAMPING,
AND FULL-SCALE EXPEDITIONS. -
PREMIUM BRANDED QUALITY
WE PARTNER WITH INDUSTRY-LEADING MANUFACTURERS TO BRING YOU
PROVEN GEAR BUILT WITH QUALITY AND DURABILITY. NO BULL' — JUST DEPENDABLE
EQUIPMENT FOR EAGER EXPLORERS. -
FAST UK SHIPPING
WE DELIVER DIRECTLY FROM TRUSTED UK SUPPLIERS WITH PUNCTUAL
SHIPPING TIMES AND DEPENDABLE SUPPORT. GOTCHU IS HERE TO HELP BEFORE AND AFTER
YOUR PURCHASE — NO HASSLE, NO CONFUSION.
FAQ's
How long will my order take to arrive?
Delivery times vary depending on the product and supplier.
Each product page includes estimated processing and delivery timeframes so you know what to expect before placing an order.
Once your order has been dispatched, you will receive shipping confirmation and tracking information where available.
Click THIS LINK to understand how your order is processed.
How can I track my order?
If tracking is provided by the supplier, we will send you the tracking details once your order has been dispatched.
If you haven't received tracking information within the expected timeframe, please contact us and we will follow up with the supplier.
Can I return an item?
Yes. We offer a 14-day return window for eligible products.
Returned items must be:
- Unused
- In their original condition
- In the original packaging
- Returned with all accessories and components
Some items, including products purchased from Clearance or Final Reduction collections, may not be eligible for return.
For full details, please review our Return & Refund Policy.
Who pays for return shipping?
If an item arrives faulty, damaged, or incorrect, GOTCHU will cover the return shipping costs.
If a return is requested for any other reason (such as a change of mind), the customer is responsible for return shipping costs.
Some approved returns may also be subject to a restocking fee, depending on the product and supplier.
What if my item arrives damaged or faulty?
Please inspect your order upon delivery.
If your item arrives damaged, faulty, or incorrect, contact us within 48 hours of receiving the order with your order number and photos if possible.
We will work quickly with the supplier to resolve the issue and arrange a replacement or refund where appropriate.