5 0 Chalwyn MPX-500 Air Intake Shutdown Valve Air Pressure Actuator MPX-500 Valve $300 USD (GOOD USED) Chalwyn MPX-500 Air Intake Shutdown Valve Air Pressure Actuator, for sale!!! Part #: 030248; Stock #: EB1385 For more information about this listing, shipping, technical... ConditionUsedPart Number030248Stock NumberEB1385 MLS Number13728443CategoryValves Last Updated7/29/2025 LocationHialeah, FL, US Sold ByJJ Rebuilders Inc. (844) 385-___ SHOWNUMBERCall Seller Email Seller Save More Info