Check the listing for details. Silca Elastomer Seal for Reversible Chuck and Impero Head #323. Condition: New. Listed at 11.99 USD. Powered by Frooition Silca Elastomer Seal for Reversible Chuck and Impero Head #323 Item Description Replacement elastomer gaskets for old or new SILCA pumps that offer a longer life expectancy than traditional rubber. Utilizes a high-tech, fully synthetic elastomer base materialFeatures five times the durability of traditional rubber materialsUsed in three original brass chucks (Art.24.4, Art.84 and Art.323)Used in Impero frame pumpsCan be flipped for Presta or Schrader (brass chucks only) $11.99 NEW Silca Powered by Frooition Frooition Frooition | No-js Template | eBay design, eBay store design, eBay shop design, eBay template design, eBay listing design (ver:froo_no_js) This listing is currently undergoing maintenance, we apologise for any inconvenience caused.