Skip to content

800-352-6631 8AM - 5PM CST / Monday - Friday

Help Center
/
Shipping & Returns
/
Request A Quote

Products
- Server Racks & Cabinets
- Airflow & Cooling
- Power
- Server Rack Shelves & Drawers
- Server Rack Screws & Hardware
- Data Center Cable Management
- Cables, Patch Panels, Audio Video
- Electronics, KVM & LCD Monitors
- SKB Protective Cases
- Security ID Solutions
- Rail Kits & Brackets
- Furniture & LAN Racks
- Fiber
- Electrical Enclosures
Solutions
Divisions
- ID Solutions
- Security
- Power & Cooling
Partners
Explore

Products
Solutions
Divisions
Partners
Explore

Search for anything

Server room with rows of servers and a person in the distance.

Welcome to the new Rackmount Solutions website!

We’ve given Rackmount Solutions a fresh look with smoother navigation, clearer product info, and an overall better shopping experience. Everything you rely on is still here; it's just easier to find! Take a look around, and if you have any questions, we're always standing by to help!

Looking for ServerRack.com? You're in the right place! We've joined forces with Rackmount Solutions to create the best IT ordering experience in the industry. Continue shopping to discover the full range of solutions we offer to address your IT infrastructure needs.

Home / AisleLok Aisle Containment / Aislelok Sliding Door Transom Window

Explore More IT Solutions

Koldlok

From $23.30

HotLok airflow management panel with temperature indicators for server racks by Upsite Technologies. Ideal for optimizing rack cooling efficiency.

From $5.50

Aislelok Acrycell Sealing Tape

Aislelok Acrycell Sealing Tape

From $34.50

Aislelok Bi-Directional Server Aisle Containment Doors

Aislelok Bi-Directional Server Aisle Containment Doors

From $2,323.57

Aislelok Sliding Door Transom Window

|

SKU# AisleLok-20155-450 - Upsite Technologies

$711.43 /

Shipping calculated at checkout.

Dimensions

Color

Product variants

Quantity

Need it fast? Stock can vary, so reach out to us first for up-to-date availability and lead times on time-sensitive orders.

Shipping Method: LTL Freight

Shipping Method

For shipments that aren’t dock-to-dock or have special delivery requirements beyond a liftgate, we recommend reaching out to our team of account managers at 1-800-352-6631 prior to placing your order.

We'll be happy to review your delivery needs and provide an accurate freight quote.

Otherwise, additional delivery charges could apply. Learn More

Estimated Ship Date: Wed Mar 4 - Fri Mar 6

Estimated Ship Date

Estimated ship dates are based on standard availability and production schedules and may differ from what’s shown on this page.

We recommend reaching out to our team of account managers at 1-800-352-6631 prior to placing your order.
We'll be happy to confirm current stock levels and provide the most accurate lead times.

Otherwise, ship dates are subject to change based on material availability and manufacturing demand. Learn More

Overview

● External Height: 8.75

● Material: Clear Polycarbonate

● Color: Black

● RoHS Compliant: Yes

● Manufacturer: Upsite Technologies

● Warranty: One Year Limited

● External Height: 8.75

● Material: Clear Polycarbonate

● Color: White

● RoHS Compliant: Yes

● Manufacturer: Upsite Technologies

● Warranty: One Year Limited

● External Height: 8.75

● Material: Clear Polycarbonate

● Color: Black

● RoHS Compliant: Yes

● Manufacturer: Upsite Technologies

● Warranty: One Year Limited

● External Height: 8.75

● Material: Clear Polycarbonate

● Color: White

● RoHS Compliant: Yes

● Manufacturer: Upsite Technologies

● Warranty: One Year Limited

IT Pros Also Viewed

Koldlok

Koldlok

Upsite Technologies

Koldlok From $23.30 /

5.0

Choose Options

Single black HotLok blanking panel for server rack airflow management. Designed to block unused rack spaces and improve cooling.

HotLok airflow management panel with temperature indicators for server racks by Upsite Technologies. Ideal for optimizing rack cooling efficiency.

Upsite Technologies

Hotlok From $5.50 /

5.0

Choose Options

Aislelok Acrycell Sealing Tape

Aislelok Acrycell Sealing Tape

Upsite Technologies

Aislelok Acrycell Sealing Tape From $34.50 /

Choose Options

1010/4040 Cover with Safety Stripe - 10 Pack

Upsite Technologies

1010/4040 Cover with Safety Stripe - 10 Pack $147.14 /

Side Rail Sealing Kit

Upsite Technologies

Side Rail Sealing Kit, ~50U $113.00 /

Dimensions

Color

Product Information

Aislelok Sliding Door Transom Window

Product Description

Adds 8.75” (222 mm) to door height (~50U). Requires the AisleLok 10155-450 4' Sliding Door for use.

Quickly and easily increase the effective optimizing height of Upsite Sliding Doors with Transom Windows. Just like the Sliding Doors, they are designed for tool-less installation, removal, and re-installation. Sliding Door Transom Windows are available in either black or white and increase the Sliding Doors’ total height to 93 inches.

Features

Containment for either hot or cold aisle
Solution for both new builds and retrofit data centers
Modular design accommodates aisles up to 6’6” wide and any cabinet 76 inches and higher
Entirely tool-less installation with exclusive Magswitch Technology
Large, polycarbonate doors available in a variety of fire ratings
Available in black or white

Benefits

Reduction of IT equipment intake temperatures, improving equipment life & reliability
Tool-less design allows for easy installation, removal, and re-installation
No drilling required in racks or cabinets
Containment in minutes without the need for contract labor (see installation video)
Sizeable see-thru door panels increase safety and security
Reduction of operating costs by improving thermal efficiency

Adds 8.75” (222 mm) to door height (~50U). Requires the AisleLok 10155-450 4' Sliding Door for use.

Quickly and easily increase the effective optimizing height of Upsite Sliding Doors with Transom Windows. Just like the Sliding Doors, they are designed for tool-less installation, removal, and re-installation. Sliding Door Transom Windows are available in either black or white and increase the Sliding Doors’ total height to 93 inches.

Features

Containment for either hot or cold aisle
Solution for both new builds and retrofit data centers
Modular design accommodates aisles up to 6’6” wide and any cabinet 76 inches and higher
Entirely tool-less installation with exclusive Magswitch Technology
Large, polycarbonate doors available in a variety of fire ratings
Available in black or white

Benefits

Reduction of IT equipment intake temperatures, improving equipment life & reliability
Tool-less design allows for easy installation, removal, and re-installation
No drilling required in racks or cabinets
Containment in minutes without the need for contract labor (see installation video)
Sizeable see-thru door panels increase safety and security
Reduction of operating costs by improving thermal efficiency

Adds 8.75” (222 mm) to door height (~50U). Requires the AisleLok 10155-650 6' Sliding Door for use.

Quickly and easily increase the effective optimizing height of Upsite Sliding Doors with Transom Windows. Just like the Sliding Doors, they are designed for tool-less installation, removal, and re-installation. Sliding Door Transom Windows are available in either black or white and increase the Sliding Doors’ total height to 93 inches.

Features

Containment for either hot or cold aisle
Solution for both new builds and retrofit data centers
Modular design accommodates aisles up to 6’6” wide and any cabinet 76 inches and higher
Entirely tool-less installation with exclusive Magswitch Technology
Large, polycarbonate doors available in a variety of fire ratings
Available in black or white

Benefits

Reduction of IT equipment intake temperatures, improving equipment life & reliability
Tool-less design allows for easy installation, removal, and re-installation
No drilling required in racks or cabinets
Containment in minutes without the need for contract labor (see installation video)
Sizeable see-thru door panels increase safety and security
Reduction of operating costs by improving thermal efficiency

Adds 8.75” (222 mm) to door height (~50U). Requires the AisleLok 10255-650 6' Sliding Door for use.

Quickly and easily increase the effective optimizing height of Upsite Sliding Doors with Transom Windows. Just like the Sliding Doors, they are designed for tool-less installation, removal, and re-installation. Sliding Door Transom Windows are available in either black or white and increase the Sliding Doors’ total height to 93 inches.

Features

Containment for either hot or cold aisle
Solution for both new builds and retrofit data centers
Modular design accommodates aisles up to 6’6” wide and any cabinet 76 inches and higher
Entirely tool-less installation with exclusive Magswitch Technology
Large, polycarbonate doors available in a variety of fire ratings
Available in black or white

Benefits

Reduction of IT equipment intake temperatures, improving equipment life & reliability
Tool-less design allows for easy installation, removal, and re-installation
No drilling required in racks or cabinets
Containment in minutes without the need for contract labor (see installation video)
Sizeable see-thru door panels increase safety and security
Reduction of operating costs by improving thermal efficiency

About the Manufacturer

Upsite Technologies is known as the pioneers of airflow and cooling in data center management solutions. Upsite engineers, designs and manufactures a variety of products to assist in data center airflow. The KoldLok, HotLok, AisleLok, and EnergyLok Series of products feature multiple awards and multiple design patents for their industry leading airflow management. By utilizing Upsite Technologies products, your data center can effectively reduce cooling costs, improve reliability, increase capacity, and cut operating expenditures.

Shipping

Rackmount Solutions wants you to be completely happy and satisfied with your purchase and that includes the shipping method to your location. Items ship by UPS daily, or LTL motor freight truck and/or their designated partner/contractors. If you have an established account with a delivery company, we will make every effort to ship on that carrier and you will be billed directly by them. Please tell us at the time the order is placed in the comment section of the checkout.

Full Shipping Policy & Accessorial Freight Charges

Product Specs

External Height:8.75
Material:Clear Polycarbonate
Color:Black
RoHS Compliant:Yes
Manufacturer:Upsite Technologies
Warranty:One Year Limited
Country of Origin:Made in USA

External Height:8.75
Material:Clear Polycarbonate
Color:White
RoHS Compliant:Yes
Manufacturer:Upsite Technologies
Warranty:One Year Limited
Country of Origin:Made in USA

External Height:8.75
Material:Clear Polycarbonate
Color:Black
RoHS Compliant:Yes
Manufacturer:Upsite Technologies
Warranty:One Year Limited
Country of Origin:Made in USA

External Height:8.75
Material:Clear Polycarbonate
Color:White
RoHS Compliant:Yes
Manufacturer:Upsite Technologies
Warranty:One Year Limited
Country of Origin:Made in USA

Downloads

Aislelok Brochure
Download file

Case Study Containment Savings
Download file

Rackmount Solutions Overview
Download file

Aislelok Brochure
Download file

Case Study Containment Savings
Download file

Rackmount Solutions Overview
Download file

Aislelok Brochure
Download file

Case Study Containment Savings
Download file

Rackmount Solutions Overview
Download file

Aislelok Brochure
Download file

Case Study Containment Savings
Download file

Rackmount Solutions Overview
Download file

Rackmount Solutions offers a full variety of data center power, cooling and security products, featuring a complete set of custom server racks made in the USA.

About
FAQs
News
Careers
Contact Us

Terms & Conditions
Customer Support
Shipping & Returns
Shipping to Canada?
RMA Request

Subscribe to our newsletter

Keep up to date on promotions, new products, industry news and more!

Email

I agree to receiving marketing emails and special deals

© 2026 Rackmount Solutions

Cart ⁰

Your cart is currently empty.

Search

Trending Now

Hammond Manufacturing
#4 X 1/2" Self Tapping Screw For Plastic Enclosures From $5.59 /
Choose Options
Great Lakes Case
(2) 75 CFM Fans with Fan Guard $285.00 /
Middle Atlantic
(2) Locking and (2) Non-Locking Casters $126.00 /