Strainer Screen Perforated Screen Size 0.033 in Length 3 3/4 in Screen Material 304 Stainless Steel Seal Material Spiral Wound Graphite Filled Strainer Type Perforated Compatible Mfr Model Number 3/4 581 CS Screwed End 3/4 582 CS Socket Weld Compatible with Grainger Part Number 1RND8 1RNE7 Cv Flow Factor 12 gpm For Use With 3/4 582 CS Socket Weld Mfr No 3/4 581 CS Screwed End Standards ASSE CSA FM NSF UL ULC USC WQA