The Lifeline GPL-L16T is a 6V 400Ah (C/20) AGM battery.
Dimensions are 10.98”L x 6.89”W x 15.55”H and 119lbs (279mm x 175mm x 395mm and 54 kg)
Lifeline AGM batteries are among the best lead acid batteries available.
They are manufactured in California by Concorde Battery. When you choose Lifeline, you get high quality construction designed to last many years in deep cycle usage.