Hydro-Quip PH101-15UV 3' 115V 1.5kW In Line Cord Plug Heater Bath Features: T-Style 46-355-1033, in-line vacuum 46-355-1054, and in-line pressure 46-355-1045 and 46-355-1048 1" socket unions (pressure) or 1-1/2" socket unions (vacuum) 1.9" stainless housing 7" flange to flange length 115v or 230v models Automatic smart thermostat Intelligent high temperature limit circuit (will not trip) Heater control pressure switch (pressure activated models) Heater control vacuum switch (vacuum activated models) Heater "ON" indicator lightSpecifications: Bath Heater Type: Vacuum Heater Application: Bath Plumbing Style: In-Line Heater Type: Flo Thru Voltage: 115v Wattage: 1.5kW Plumbing Connection Size "A": 1", 1-1/2" Plumbing Connection Type "A": Slip (s), Spigot (spg) Heater Inlet Size: 1-1/2" Plumbing Connection Size "B": 1", 1-1/2" Heater Inlet Type: Female Buttress Thread (fbt) Plumbing Connection Type "B": Slip (s), Spigot (spg) Heater Outlet Size: 1", 1-1/2" Heater Outlet Type: Slip (s) Manufacturer: HydroQuip