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In order to ensure that the measurement results are correct, a minimum outlet size of 335 x 335 mm should be provided.
Replacement hood (915 x 915 mm) for mounting on the testo 420 volume flow hood for measurements at air inlets and outlets. With integrated flow straightener for high-precision measurement results. Inner dimensions 890 x 890 mm.
Buy with 100% confidence knowing your purchase is backed by the full Manufacturer's Warranty. Please register your product with provided warranty card.