Dwyer VFA-1-SSV is a Visi-Float® Acrylic Flowmeter that offers accuracy of 5% of FS for VFA and 3% of FS for VFB. It is compatible with both gases and liquids and can be mounted in a vertical position. The flowmeter is made of acrylic plastic with options for different wetted materials. It has a pressure limit of 100 psig without a valve and 100 psig with a valve. It has a 1/8" female NPT process connection and comes with scales of 2" for VFA and 4" for VFB.