Poppet Assembly is integrated with Swivel Top section Features : Lower profile design reduces the need to adjust the riser pipe and spill bucket. The swivel top section that rotates 360° with product or vapor elbow movement while the swivel bottom section remains securely sealed to riser pipe. Viton gasket and PTFE-silicone o-ring seals provide compatibility with all current fuels and fuel additives, including the proposed ethanol additive. No lubrication required, complete with stainless steel socket screws. Female thread available with 3