6 Gallon Better Bottle.

Overall – 28.9 cm (11 3/8") diameter by 49.1 cm (19 1/3") high
Neck – ID 45 mm (1.77") / OD 55 mm crown
Volume – Nominal 6 US Gallons (22.7 liters) / 5 UK Gallons (22.7 liters) [filled to bottom of neck ~ 22.8 liters].
Weight – ~0.68 Kg (~1.5 lbs) empty and 23.4 Kg (~50 lbs) filled
Pressure/Vacuum Limits – 1 bar (14.5 psi) and -0.05 bar (-0.75 psi) at 25° C (77° F)
Temperature Limits – -30°C to 60°C (-22°F to 140°F)