Silca Elastomer Seal Presta Chuck 242 | Fits All Bell-Shaped SILCA Presta Heads | Replacement Elastomer Gaskets | Sealing Washer Gasket for Silca Pump

Silca Elastomer Seal Presta Chuck 242 | Fits All Bell-Shaped SILCA Presta Heads | Replacement Elastomer Gaskets | Sealing Washer Gasket for Silca Pump

Upgraded | The new 242 gasket utilizes a high-tech, fully synthetic elastomer base material rather than a carbon black filled natural rubber of previous gaskets. Long-Lasting | Silca Elastomer Seal Presta Air Chuck 242’s life expectancy is 5 times more than traditional rubber gaskets like carbon-filled rubber or Buna-N materials. Reinvigorate Your Pump | The option of buying a gasket part saves you time and money! Instead of investing in a new pump, get a new seal to make your Silca pump last a lifetime! Efficient Seal | This elastomer seal is easier to get on and off the valve stem, No more leaking air problems with this improved Silca Elastomer Seal Presta Chuck 242. Great to keep on your Silca bag/emergency kit. Versatile | The new two-stage sealing geometry is optimized for any Presta silca valve stem. Works well with Silca floor and hand pumps/inflators like a Silca Superpista pump. Great for a cyclist or a mechanic who is looking to bring their SILCA PRESTA CHUCK back to all of its glory by replacing the sealing gasket. The Iconic SILCA 24.1 gasket has been updated and improved after more than 30 years in the market. The new 242 gasket utilizes a high tech, fully synthetic elastomer base material rather than a carbon black filled natural rubber of previous gaskets. This unique bright red gasket borrows from industries that require air-tight seals in the harshest of environments, and tests to a life expectancy of more than 5 times the carbon-filled rubber or Buna-N materials previously used. New Two-Stage seal geometry seals on both the valve stem and at the base of valve core threads resulting in a more positive seal and improved durability. The new gasket slips onto the valve stem with a satisfying 'click', while unique internal geometry actually utilizes line air pressure to compress the gasket onto the valve stem: the higher you pump, the harder it grips the stem! Features: Comprises the finest, fully synthetic, Elastomeric materials Achieves a durability of 5 times the traditional rubber materials Newly optimized two-stage sealing geometry maximizes performance on all Presta valve stems Pressure amplifying dome geometry uses air pressure to clamp valve stem Works with 30.0/30.2 and 17-4 stainless steel chucks Replaces previously available 24.1 gasket Fits all prior SILCA Presta heads Made in the USA