Inclined air filter gage, range .10-0-1.0" w.c., 5-1/2" inclined scale,
Dwyer® Durablock® Series 250-AF Gages are precision machined 1" thick solid acrylic plastic, virtually unbreakable and free of distortion. The fluid bore is precision drilled to ±.0002" to assure life long accuracy. A glass spirit level is built into the body and encapsulated to prevent damage or tampering.