Description Accessories Description The Meriam 1/4" MNPT x 1/8" FNPT Brass Reducer Bushing is an accessory for the Meriam MFT 4000 Series Modular Calibrator. State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Literature & Docs Accessories Meriam Multi Function Modular Calibrator / HART Communicator MFT4000