4" = TEFLON RING GASKET 1/8 THICK This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. FLANGE RING GASKETS All Gaskets are 1/8" Thick Specifications 4" = TEFLON RING GASKET 1/8 THICK How to Use Contact your Norchem rep for step-by-step instructions. Tweet