Replacement suction valve for veterinary use only.
Replaces Olympus part number MH-443.
Compatible with Olympus 140-Series endoscopes and above (all Olympus endoscopes that use MH-443 button)
** This button does NOT work on the ESS VET-H Series endoscopes **
NOTE: These are for veterinary-use only. They are not FDA-Approved for human medicine.