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Testo 420 Hood 305 X 1220 MM - 0554 4201Testo 420 Replacement Hood 305 x 1220mm The Testo 420 replacement hood (305 1220mm) is designed for accurate volume flow measurement at long, narrow linear slot diffusers and ventilation grilles. The integrated flow straightener physically calms turbulent airflow before it reaches the sensor matrix eliminating the bouncing readings that make slot diffuser balancing so difficult and ensuring your commissioning report is accurate. This hood attaches
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Testo 420 Replacement Hood 305 x 1220mm
The Testo 420 replacement hood (305 × 1220mm) is designed for accurate volume flow measurement at long, narrow linear slot diffusers and ventilation grilles. The integrated flow straightener physically calms turbulent airflow before it reaches the sensor matrix — eliminating the bouncing readings that make slot diffuser balancing so difficult and ensuring your commissioning report is accurate.
This hood attaches directly to your existing Testo 420 volume flow hood base and comes with a durable carry bag. Not sure which hood size you need? See our Testo 420 hood selection guide or browse the full flow hood range at HVAC Shop AU.
Key Features
- 305 × 1220mm nominal dimensions — ideal for linear slot diffusers
- Inner dimensions: 280 × 1195mm
- Integrated flow straightener for high-precision measurement at turbulent outlets
- Minimum outlet requirement: 335 × 335mm
- Attaches directly to Testo 420 volume flow hood base
- Includes durable carry bag
Suitable For
- Commercial office HVAC balancing and commissioning
- Cleanroom ventilation verification
- Modern architectural HVAC installations with slot diffusers
- NEBB certified professionals and commissioning agents
What’s Included
- Replacement hood 305 × 1220mm (product no. 0554 4201)
- Carry bag
Testo 420 Hood 305 X 1220 MM - 0554 4201
Item no
:
63197136980
US$ 401.18
Pay in 4 interest-free payments of $100.30 Learn more
Min. order:
1piece
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 21 - Jun 26
US$40
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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