Mini Expansion Vessel Shock Arrestor WRAS Approved Dimensions: H 110 x 78 mm diameter Capacity: 0.16 litres Vessel pre-charge: 3 to 3.5 bar Connection: Parallel Size: 1/2″ BSP Max. Operating Pressure: 10 bar 15mm Compression Tee Included-15x15x1/2''FI