Qualkem Box of 12 x 480ml trigger spray bottle with a Gas Leak Detection Fluid for Easy leak detection on pressurised gas systems. Non-aerosol. Product is Non-hazardous. Please Note: CHEMICALS ARE DISPATCHED DIRECT FROM MANUFACTURER AND INVOICED SEPERATELY BY PLS. ORDERS ARE PLACED BY PLS ON TUESDAYS AND THURSDAYS EACH WEEK FOR DELIVERY WEDNESDAY AND FRIDAY DIRECT FROM MANUFACTURER.