This smaller length twin carburettor filter can be used where space is at a premium and the JC50 filter will not fit. As with the JC50, the two outer layers of foam provide optimum filtration and load-up capacity while the inner layer is made of a special self extinguishing filter foam. Together, they give the best combination for air flow, engine protection and safety A (Internal height) : 65 B (Width) : 142 C (Length - top) : 379 D (Overall height) : 90