<div> Replacement elastomer gaskets for old or new SILCA pumps that offer a longer life expectancy than traditional rubber.</div><div> <ul><li>Used in three original brass chucks (Art.24.4, Art.84 and Art.323)</li><li>Used in Impero frame pumps</li><li>Can be flipped for Presta or Schrader (brass chucks only)</li><li>Utilizes a high-tech, fully synthetic elastomer base material</li><li>Features five times the durability of traditional rubber materials</li></ul> </div>