Material: Stainless steel Mesh Size: 3/4" Number: 718964 These screw-on stainless steel wire mesh strainers are designed to provide effective, dependable protection against trash or fish scales which could clog drains in bait wells or pump impellers in aeration systems. Made from formed stainless steel wire mesh cloth and then molded into a PVC base with internal threads this unit is non-corrosive, functional and looks extremely good installed on any boat. AS-1: Use on any aerator pump intake. Simply screws onto threaded pump intake in livewell or on exterior of boat. - Ordering Information: AS-1 Black base with 3/4”-14 Female Threads.