Parts › AMAL CONCENTRIC 6 AND 9 SERIES 1 / 2 Image 1 of 2 Image 2 of 2 AMAL CONCENTRIC 6 AND 9 SERIES £11.00 Standard Float Bowl for 6 and 9 Series Carburettors. Add To Cart Added! Standard Float Bowl for 6 and 9 Series Carburettors.