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MDF Instruments® stethoscopes and reflex hammers are backed by a Lifetime Warranty covering defects in materials and craftsmanship for the life of the instrument, while MDF® aneroid sphygmomanometers include a Lifetime Calibration Warranty to help maintain lasting accuracy. For added protection, M+Unity™ Extended Warranty covers accidental damage not included under the standard warranty, such as drops, impacts, liquid damage, and other unexpected accidents.

We like to keep things simple. We give you 90 days to try our products, and if you don't love your MDF Instruments® product, simply initiate a return by contacting us here. Items with customized engraving and embroidery are not eligible for return.

MDF Instruments® products are HSA/FSA eligible, making it easy to use eligible healthcare funds toward the professional instruments you rely on every day.

Since 1971, MDF Instruments® has handcrafted medical instruments with precision, quality, and care. Trusted by healthcare professionals for over 50 years.