A leak-proof inlet is the detail that decides whether a filled roller can be left standing between jobs - the usual complaint on water drums is a seeping cap. This one holds 16 gallons in a 20 x 16 in drum, 2.7 cubic feet, and spreads even pressure for levelling, seeding and turf laying. Metal construction weighs 27.5 lbs empty across a 21 x 16 x 44 in frame. Fill with sand for maximum weight in a smaller volume. Assembly is required and it ships in one carton.