Testo 420 Replacement Hood — 360 x 360mm | SKU: 0554 4200
The Testo 0554 4200 is a replacement hood for the Testo 420 volume flow hood, sized 360 x 360mm (inner dimensions 335 x 335mm). It is designed for measurements at air inlets and outlets and features an integrated flow straightener for high-precision volume flow measurement results. The 360 x 360mm size is suited to square diffusers and smaller outlets.
Confirm compatibility with your specific Testo 420 volume flow hood before ordering. Confirm all specifications against the Testo 420 manufacturer’s current datasheet.
Key Features
- Replacement hood for Testo 420 volume flow hood
- Outer dimensions: 360 x 360mm
- Inner dimensions: 335 x 335mm
- Integrated flow straightener for high-precision measurement results
- Suited to measurements at square diffusers and smaller air inlets and outlets
- Minimum outlet size required: 335 x 335mm
- Carry bag included
What’s Included
- Replacement hood (360 x 360mm)
- Carry bag
Testo 420 Hood Sizes
- 0554 4200 — 360 x 360mm ($495.95): Suited to square diffusers and smaller outlets.
- 0554 4201 — 305 x 1220mm ($742.95): Suited to linear slot diffusers and rectangular outlets.
- 0554 4202 — 610 x 1220mm ($571.95): Suited to larger rectangular outlets.
Check Before Ordering
- Confirm compatibility with your specific Testo 420 volume flow hood before ordering
- Minimum outlet size is 335 x 335mm — confirm your outlet dimensions before ordering
- Confirm warranty terms with HVAC Trade Supply at time of purchase
Browse our full HVAC test and measurement range or contact our team for advice on the right hood size for your application.