Dvgw Tested Leak Finder Spray For Gas And Compressed Air As Per Product 'Eco Leak Finder ' Of M/S Crc Industries In 500 Ml Aerosol Can Or Part No. 4300013100 Of M/S Aal Or 'Leak Detector' Of M/S Ambersil Only. [ Warranty Period: 30 Months After The Date Of Delivery ] ]