Zurn Wilkins 1 NR3XLDUC 1" NR3XL Pressure Reducing Valve with Double Union FNPT Copper Sweat Connection B65011 Color Gray Modes of Protection Color Gray Modes of Protection 4 Surge Protection Type 1 Enclosure Type NEMA Type 4X Surge Protection Technology Individually integrated thermal disconnect technology TPMOV Voltage 277 480 VAC 3 Phase Wye Filter No Filter Warranty Period 5 Year limited Has LED Remote Contact Audible Alarm No Maximum Surge Current Rating Per Phase 100 kA Conduit Size 3 4" Diagnostics Indicator Blue LED Protection Status Indicator sold separately) CAUTION: Anytime a reducing valve is adjusted Multiple installations are recommended for wide demand variations or where the desired pressure reduction is more than 4 to 1 (ie: 200 psi inlet reduced to 50 psi outlet)