
The Watts Regulator PLT-5 is a 2.1 gallon pre-pressurized diaphragm-type potable water expansion tank designed to absorb thermal expansion in closed domestic water systems. NSF/ANSI 61 certified for potable water contact. New in original box. Brand: Watts Regulator (Watts Water Technologies) Model: PLT-5 Capacity: 2.1 gallons Type: Pre-pressurized diaphragm expansion tank Inlet Connection: 3/4" NPT Pre-charge Pressure: 20 PSI Certification: NSF/ANSI 61 (potable water) Watts SKU: 0067370 Application: Closed domestic potable water systems, water heater thermal expansion control Condition: New in box Required by code in many jurisdictions for closed water systems with a pressure reducing valve (PRV). Prevents pressure buildup from thermal expansion in water heaters and boilers. Ready to install.