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A popular upgrade over standard hop rubbers. The Shark Red version has 3 fins on the inside compared to the all smooth Thunder Series Blue version from MADBULL.
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A popular upgrade over standard hop rubbers. The Shark Red version has 3 fins on the inside compared to the all smooth Thunder Series Blue version from MADBULL. This helps prevent double feeds by holding the BB firmly in place until the nozzle pushes it into the hop chamber.