- Home Page /
- Tools & Home Improvement /
- Building Supplies /
- HVAC /
- Registers, Grilles & Vents /
- RDP Square to Round Transition Box (20" x 20"...
0 ratings
Item #:
213956998
RDP Square to Round Transition Box (20" x 20" x 16")
Item #:
213956998
XCD 316
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Wednesday, August 19
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
The RDP Square to Round Transition Box diffuser is ideal for connecting a ceiling register to your air supply.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Efficient Design
The square-to-round transition box efficiently converts airflow between different duct shapes, optimizing ventilation and ensuring consistent air distribution throughout spaces.
Durable Material
Constructed from high-quality, robust materials, this transition box offers excellent resistance to wear and enhances longevity, making it a dependable choice for HVAC installations.
Easy Installation
Designed for straightforward setup, the RDP transition box simplifies the installation process, ensuring you can quickly and effectively retrofit existing systems without unnecessary hassle.
Product Details
| Brand Name | RDP |
| Model Number | SDB |
| Manufacturer | Roofing Direct |
| Part Number | SDB202016 |
| Included Components | Duct Transition Box |
| Unit Count | 1.0 Count |
| Color | Silver |
| Finish Type | Galvanized |
| Item Weight | 15 Pounds (6.8 kg) |
| Material | Alloy Steel |
| Brand | RDP |
Who Should Buy?
-
HVAC Professionals
Ideal for HVAC technicians needing a reliable solution for connecting square ducts to round vents efficiently.
-
Home Renovators
Perfect for homeowners or renovators looking to upgrade their air duct systems and improve air distribution.
-
Commercial Installers
Beneficial for commercial contractors needing robust and versatile transition solutions in larger buildings.
-
Small DIY Projects
Not suitable for small-scale projects where a more compact or specialized transition is required.
Product Description
RDP Square to Round Transition Box (20" x 20" x 16")
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What material is the RDP Square to Round Transition Box made of?
Answer: It is made of heavy-duty 28-gauge galvanized steel. -
Question:
Can I use this transition box for different duct sizes?
Answer: Yes, it comes in a variety of common sizes for different applications. -
Question:
Where is the RDP Square to Round Transition Box manufactured?
Answer: It is proudly manufactured in the USA.
RDP Registers, Grilles & Vents SDB Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
XCD 316
Order now and get it around Wednesday, August 19
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Designed for seamless connection between square ducts and round ducts.
- Constructed from heavy-duty 28-gauge galvanized steel for durability.
- Manufactured in the USA, ensuring high quality.
- Available in various sizes to fit common applications.
- Perfect for transitioning air supply for efficient airflow.
- Enhances your HVAC system with reliable performance.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.