200mm SS H/H Standard Air Jet ASTM Midpoint 300um or No.50
200mm Diameter Stainless Steel Frame Standard Air Jet, Half-Height, according to ASTM E11, Midpoint Sieve, 300 microns or No.50.
MIDPOINT SIEVES were built and certified to have tolerances 30% better than ASTM/ISO standards for sieve mesh. Midpoint sieves have been discontinued by the manufacturer. QUANTITIES ARE LIMITED.