ZURN 1-SXL 1 IN. FNPT X FNPT - STRAINER - 20 MESH SCREEN - 300 WOG LEAD FREE CAST BRONZE RECOMMENDED FOR A VARIETY OF WATER SERVICE LINES INCLUDING RESIDENTIAL AND COMMERCIAL IRRIGATION SWIMMING POOLS AND COOLING TOWER WATER. THEY ARE ALSO DESIGNEDTO PROTECT DELICATE EQUIPMENT SUCH AS REGULATORS AND BACKFLOW PREVENTERS BY FILTERING SEDIMENT WHICH COULD CAUSE PREMATURE FAILURE. STANDARDS COMPLIANCE UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" NSF® LISTED - STANDARD 61 ANNEX G CERTIFIED TO NSF/ANSI 372 BY IAPMO R&T