Introducing the 521PLF Brass Press Swing Check Valve. This full port, swing-type valve features press x press connections and operates at 200 WOG with a maximum working temperature of 212°F. Designed with press ends that comply with IAPMO PS117/ASTM B16.51, and manufactured according to MSS SP-80 standards, it is certified to NSF 61/372. Available in sizes ranging from 1/2” to 2”, this valve offers many options for a wide range of applications.