The Lifeline GPL-31T is a 12V 105Ah (C/20) AGM battery in a BCI group 31 case size.
Dimensions are 12.90”L x 6.75”W x 9.27”H and 64lbs (328mm x 171mm x 232mm and 28.1 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.