Hercules® Lugless 150H(TM) BOP Cap for secure sealing with quick and easy operation. The Hercules Lugless 150H BOP Cap increases clearance and provides an increased level of safety. The lugless end caps of the Hercules 150H BOP allow operations to use a wrench rather than a hammer to secure the end caps. The lugless BOP caps can be easily operated with a standard 24-inch or 36-inch pipe wrench, a 36" adjustable wrench or a 3" wrench - no hammer is required.