The ingeniously designed Aquaflow Tanks, moulded in tough, dark blue anti-algae shatterproof polyethylene. Can be used in any position, even upside-down and will still provide an inlet, an outlet, provision for a draincock and vent in the right place. Inlet dimensions (stepped) 1 1/4"-1 1/2". 3/4" BSP internal thread. Outlets 3/8" BSP internal thread. Supplied with threaded blanks fitted. Dimensions: 23 x 46 x 48cm Capacity: 45ltr