50 Micron 12" X 12" Screen Stainless T-316 (1 piece) Surgical Grade Filter Material Particulate Capture Extracts Home Brewing Aquariums Biofuel We ship daily! Discreetly packaged to protect your item in transit. 50 micron stainless screen will allow all praticulate smaller than 50 microns to pass while retaining the rest. Will not tear, corrode, blowout, or fail you. Technical Specs: 325 mesh T-316 alloy stainless steel screen. Wire dia. .0014 opening width .0024 or 50 microns % open area 30.5% 12" X 12" 325 mesh screen cut from new rolls. Uniform 50 micron openings that retain their shape. Resists clogging. Your item will arrive in perfect condition with no marks, kinks or blemishes.