The ST-6500 weighs only 75 lb, measures 70 by 116 by 43 in., and boasts a bare chamber volume of 144.4 cu ft with a minimum installed capacity of 180 cu ft with 6 in. of stone above and below. The new ST-6500 can withstand H25 loading with only 18 in. of total cover. The ST-6500 will be available later this year.
