I recently ordered a replacement for FUTURA 5 litre Pressure Cooker. Now, ater using it about 3 times, I'm here to order another because it blew its top. I noticed on the last one ordered that it was smaller than the original it was supposed to replace. Can it be that the size of the replacement was too small and that's why it wasn't able to withstand the pressure designed for that capacity size Pressure Cooker. Please pay particular attention to that in filling this order. Thank you for your cooperation...RS