calimaero
0 ratings
calimaero SEAL 100 mm Recycled Plastic Non-Return Valve | Silencer, Recycled Plastic/Usable Alu Flex, PVC, Sheet Metal, KG, HG
genuine image
calimaero SEAL 100 mm Recycled Plastic Non-Return Valve | Silencer, Recycled Plastic/Usable Alu Flex, PVC, Sheet Metal, KG, HG
This 4inch damper vent air blocker does what it is designed to do. It prevents outside air from entering back into your house via dryer, bathroom fan, and grow tent.
calimaero SEAL 100 mm Recycled Plastic Non-Return Valve | Silencer, Recycled Plastic/Usable Alu Flex, PVC, Sheet Metal, KG, HG
Item #: 187477394

calimaero SEAL 100 mm Recycled Plastic Non-Return Valve | Silencer, Recycled Plastic/Usable Alu Flex, PVC, Sheet Metal, KG, HG

76% of respondents would recommend this to a friend

Item #: 187477394

XCD 74

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
us Imported from USA store

QTY:

Order now and get it around Saturday, September 05
Secured transactionsecured 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
  • fedex
  • dhl
This 4inch damper vent air blocker does what it is designed to do. It prevents outside air from entering back into your house via dryer, bathroom fan, and grow tent.
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Gravity Operating Mechanism
Designed with a gravity-powered system, the Calimaero damper effectively prevents cold air from entering, ensuring optimal HVAC efficiency throughout the year.
Universal Fit
This backdraft damper is compatible with various duct sizes, making it a versatile choice for different HVAC installations, ensuring seamless integration.
German Engineering
Crafted in Germany, the Calimaero damper guarantees high-quality construction and reliability, providing long-lasting performance compared to cheaper alternatives.

Product Details

Shop calimaero SEAL 100 mm Recycled Plastic Non-Return Valve | Silencer, Recycled Plastic/Usable Alu Flex, PVC, Sheet Metal, KG, HG online at a best price in Montserrat. B08W4DM7Y5
  • Prevents outside air from entering your house via dryer, bathroom fan, and grow tent
  • Easy installation by cramming into the 4-inch duct with rubber flap sealing off drafts
  • Fits into almost all PVC, metal, and other ducts with 4-inch size
  • Rubber flaps are easy to open for dryers or booster fans
  • Durable recycled plastic construction with quiet rubber flaps
  • No metal parts or springs, ideal for high-humidity environments
Exterior FinishPlastic
Inlet Connection TypeBarb
Outlet Connection TypeFlange
Number of Ports2
Thread Size4 inches NPT (10.2 cm)
Thread TypeNPT
Connector TypeFlanged
Valve TypeSwing Check Valve
Item Dimensions4.41 x 0.98 x 4.72 inches (11.2 x 2.5 x 12 cm)
Inlet Connection Size4 inches (10.2 cm)
Outlet Connection Size4 inches (10.2 cm)
Item Weight1.06 ounces (30.05 grams)
Size4 Inch (10.2 cm)
Specification MetCE, RoHS
Brand Namecalimaero
Model NumberBackdraft Exhaust Damper Seal 100
Unit Count1 Count
Manufacturercalimaero
Number of Pieces1
Manufacturer Part Number4054503048133
Material TypeRubber
MaterialRubber
Brandcalimaero
Item dimensions L x W x H4.41 x 0.98 x 4.72 inches (11.2 x 2.5 x 12 cm)

Who Should Buy?

Suitable For
  • Homeowners

    Perfect for homeowners wanting to prevent cold air drafts in their HVAC or dryer vent systems.

  • HVAC Technicians

    Ideal for professionals installing or repairing systems that require efficient backdraft prevention.

  • Small Business Owners

    Great for small business owners looking to reduce heating costs by blocking cold air entry.

Not Suitable For
  • Non-HVAC Users

    Individuals who don't manage HVAC systems may not find this product beneficial for their needs.

Product Description

calimaero SEAL 100 mm Recycled Plastic Non-Return Valve | Silencer, Recycled Plastic/Usable Alu Flex, PVC, Sheet Metal, KG, HG

About This Item

Introducing the Calimaero 4 Inch Backdraft Exhaust Damper Seal - the ultimate solution to keeping cold air out and maintaining optimum airflow in your HVAC system! Designed and manufactured in Germany, this high-quality exhaust damper is engineered to fit all duct sizes, making it a versatile option for any HVAC system or dryer vent. Say goodbye to drafts and hello to energy efficiency! The Calimaero Backdraft Exhaust Damper operates on the principle of gravity power. When your HVAC system is not in use, the damper automatically closes to prevent cold air from entering your living space.

No more wasted energy and discomfort during those chilly winter months! Not only does this damper keep cold air out, but it also helps regulate airflow. This is especially important for dryer vents, as it prevents outside air from flowing back into your laundry room, ensuring that your dryer operates at maximum efficiency. With its durable construction and precise German engineering, the Calimaero Backdraft Exhaust Damper is built to last. It is made from high-quality materials that can withstand the rigors of daily use and harsh weather conditions.

Rest assured that this damper will provide long-lasting performance for years to come. Installation is quick and easy, thanks to the one-size-fits-all design. Simply attach the damper to your exhaust or ventilation system, and enjoy the benefits of improved energy efficiency and increased comfort. Don't compromise on the quality of your HVAC system or dryer vent. Choose the Calimaero 4 Inch Backdraft Exhaust Damper Seal - the trusted solution for keeping cold air out and maximizing energy efficiency.

Buy yours today and experience the difference firsthand!.

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the calimaero® 4 Inch Backdraft Exhaust Damper Seal used for?

    Answer: The calimaero® 4 Inch Backdraft Exhaust Damper Seal is designed to prevent unwanted air leakage in HVAC systems, including dryer vents. By utilizing gravity-powered functionality, it blocks backdrafts effectively when the system is not in operation. This ensures that the airflow is properly managed, enhancing HVAC efficiency and maintaining indoor air quality. Situations where this product is particularly beneficial include in homes where heating or cooling needs to be preserved without external air intrusion, or in dryer applications where moisture control is crucial.
  • Question: How does the gravity-powered mechanism of the calimaero® damper work?

    Answer: The calimaero® damper uses a simple yet effective gravity-powered mechanism to function. When the exhaust fan is on, the damper opens to allow air to flow freely; once the airflow stops, the damper closes automatically due to gravity. This design helps in minimizing energy loss and prevents the cold or hot air from entering your ductwork when not in use. Practical scenarios include use in residential applications where maintaining a consistent temperature and minimizing energy costs are essential.
  • Question: Can the calimaero® 4 Inch Backdraft Exhaust Damper be used in any duct size?

    Answer: The calimaero® damper is designed as a 'One Size Fits All' solution for 4-inch ducts, making it versatile for various HVAC installations. If your system features 4-inch ductwork, this damper will fit seamlessly without the need for additional adapters. Its adaptability is ideal for DIY projects and professional installations alike, enabling users to enhance ventilation systems across different settings, including residential and commercial environments.
  • Question: Is the calimaero® damper suitable for use in humid environments?

    Answer: Yes, the calimaero® damper is suitable for use in humid environments, as it effectively controls moisture and features materials that resist corrosion. By preventing backdrafts, it can help reduce the risk of mold and mildew that can thrive in high-moisture conditions. Scenarios where this damper adds value include usage in basements and laundry rooms, where humidity levels are typically elevated, ensuring a healthier indoor air environment.
  • Question: What materials are used in the making of the calimaero® damper?

    Answer: The calimaero® 4 Inch Backdraft Exhaust Damper is made in Montserrat using high-quality, durable materials that are designed to withstand heat, moisture, and wear over time. This ensures that the damper operates efficiently without degradation, regardless of the conditions it is exposed to. This quality is especially important in HVAC systems that experience frequent changes in temperature and air pressure, providing long-term reliability and performance.
  • Question: How is the calimaero® damper installed?

    Answer: The installation of the calimaero® damper is straightforward and typically requires basic hand tools. It can be mounted into existing ductwork, ensuring a snug fit, and involves securing it in place for optimal performance. This ease of installation makes it appealing for both DIY enthusiasts and professionals, allowing users to quickly enhance their duct systems without extensive modifications.
  • Question: What is the difference between a backdraft damper and a regular damper?

    Answer: A backdraft damper, like the calimaero® model, serves a specific purpose of preventing backflow of air, while regular dampers are used to control airflow throughout a ventilation system. Backdraft dampers are typically gravity-operated and only close when airflow ceases, ensuring no reverse air can enter, which can cause venting issues and energy loss. They are essential in applications where controlling air direction is critical, such as dryer vents and exhaust systems.
  • Question: Does the calimaero® damper require any maintenance?

    Answer: The calimaero® 4 Inch Backdraft Exhaust Damper is designed to require minimal maintenance due to its robust, gravity-operated mechanism. Regular inspections to ensure it opens and closes smoothly are recommended, but there are no complicated maintenance procedures needed. This user-friendly aspect makes it suitable for individuals looking for effective solutions with limited upkeep, such as homeowners and property managers managing multiple units.
  • Question: Where can I buy the calimaero® 4 Inch Backdraft Exhaust Damper Seal?

    Answer: You can purchase the calimaero® 4 Inch Backdraft Exhaust Damper Seal from Ubuy. Ubuy offers competitive options and reliable service when it comes to HVAC accessories, ensuring you can find the product you need conveniently.
  • Question: What are the benefits of using a backdraft damper in an HVAC system?

    Answer: Using a backdraft damper, like the calimaero® model, in an HVAC system has several benefits including enhanced energy efficiency, improved indoor air quality, and reduced risk of pests and debris entering the ductwork. By preventing backflow, it helps maintain a stable environment, which is essential for heating and cooling systems to operate effectively. This feature is particularly useful in homes where maintaining climate control without external interference is a priority.

calimaero Registers, Grilles & Vents Backdraft Exhaust Damper Seal 100 Editorial Review

The Calimaero 4 Inch Backdraft Exhaust Damper has had a mixed reception among customers, reflecting a range of experiences with its functionality and design. On one hand, many users appreciate that the damper effectively prevents unwanted drafts, particularly in bathroom exhaust vents. Customers noted that it was easy to install within their duct systems and fit well with existing 4-inch pipes. However, despite its positive attributes, a significant portion of users expressed dissatisfaction with the quality of the materials used in the damper's Construction. Many reviews pointed out that the rubber flapper is too thin and flimsy, which leads to issues such as not sealing properly or failing to stay closed in certain orientations. Some users reported that the damper could not adequately handle air pressure, particularly in vertical installations, leading to concerns about its long-term reliability. Overall, while the damper has the potential to perform well in specific scenarios—especially when installed horizontally and with adjustments—issues with durability and material strength have left customers divided on its overall value. **

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

Pros

  • Effectively prevents drafts in 4-inch duct systems.
  • Easy installation without tools.
  • Fits well with standard duct sizes.

Cons

  • Flimsy flapper material that can be prone to failure.

Platform Trust & Buyer Confidence

trustpilot logo
4.2/5 9250 + reviews
Read reviews
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 74

Order now and get it around Saturday, September 05

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Prevents outside air from entering into the house via dryer, bathroom fan and grow tent.
  • Easy installation in ducts of many materials.
  • Flexible and can fit in ducts with a 4-inch size.
  • Conveniently designed with easy-to-open flaps.
  • Quiet operation with weather-resistant plastic.
  • Works in any orientation.

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.