Sight Glass Moisture Indicator, 3/8 inch Connection, Sweat x Sweat (OD Female) Connection, 4-5/8 inch Overall Length, Construction: Heavily Copper Plated Steel or Copper, Maximum Pressure Rating: 650 psig, Includes Protective Cap for Glass Viewing Window, Dimensions: 117.8 mm L x 95.2 mm A x 34.9 mm H, 0.2 kg Weight, Temperature: -40 to +66 Deg C, 44.8 Bar Max Working Pressure