IPS 86604 1/2-Inch CPVC Socket Arrester 300 PSI Maximum working pressure Can be installed in any direction ASSE Certified to ANSI/ASSE 1010-2004 Standard "AA" Single Fixture Size Guaranteed for the lifespan of the Plumbing System UPC is Listed ASSE Certified to ANSI/ASSE 1010-2004 Standard Approved for sealed wall installations with no access panel required