Description CMJets Boomerang Elan 4.7L Kevlar Tank Set Set of tanks for Viper model 2.5m, price is $130.00 each piece. (in the picture, front left to right) 2.2L Kero 1L smoke and 2.7L kero. Total 4.9L kero 1L smoke. Full set is $390.00 Tanks are special order.  Shipping cost may vary. Please Call to Order.