Dwyer VFA-27-BV is a Visi-Float® acrylic flowmeter with high accuracy of 5% for VFA and 3% for VFB. It is compatible with gases and liquids, suitable for vertical mounting. The wetted parts are made of acrylic plastic, with nickel-plated brass as the standard material. The flowmeter 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 VFB ranges 85 and 86 have alternative back or end connections. The VFA scale is approximately 2" in length, while the VFB scale is approximately 4" in length.