1. Solder - Full Port - Blowout-Proof Stem - PTFE Seats 2. 3/8"-2" 600 PSI/40 Bar Non-Shock Cold Working Pressure 2-1/2"-4" 400 PSI/27.6 Bar Non-Shock Cold Working Pressure 3. UL: Guides YQNZ, YRBX, YRPV and YSDT 4. Size Range - 3/8" - 4"