The Waterous PB18 series features four portable pump models. Each PB18 is equipped with a Briggs & Stratton 18hp (13kW) V-Twin gasoline engine and is available with no base, rail base or wrap-around frame (PB18-3030E model not available with wrap-around frame) option. Each PB18 is equipped with a Briggs & Stratton 18hp (13kW) V-Twin gasoline engine with 6.95 Qt (6.58 L) top mounted fuel tank. NOTE: Wrap-Around frame models are CE Marked.