An economical Sprague with all of the features you'd expect from ADC.
The Proscope 640BK features:
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Threaded chestpiece drum of chrome plated zinc permits the use of five
interchangeable chestpiece fittings - an adult and pediatric diaphragm,
and three bells (1 1/4", 1", 3/4")
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Proprietary valve mechanism eliminates acoustic leakage
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Adjustable chrome-plated brass binaurals
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Complete with an accessory pouch containing the bell chestpieces,
chestpiece key, 2 spare diaphragms, one pair of mushroom eartips, and
one pair of silicon eartips
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Inspected and packaged in the U.S.A.
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Traditional 16" Latex-free, double tube configuration
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Weighs 7 oz.
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Overall length 24"
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One Year Warranty
NON Stock Product - Delivery time will be 20 - 60 business days after order has been placed.