The Series VFC Visi-Float Flowmeter is a direct reading, precision machined, clear acrylic body flowmeter suitable for both gas and liquid applications. This Series consists of two 5 Inch (127 Millimeter) scale flowmeters, the VFC and VFC II. The VFC features PVC 1 Inch female NPT connections and the VFC II units are equipped with acetal thermoplastic 1 Inch male NPT fittings.