Fuel Tank Filler Neck Seal / Grommet Valiant AP6 - CM - 100% Viton / Fluorocarbon Synthetic Rubber

New Elko reproduction filler neck seals.
Manufactured from Viton (Fluorocarbon Synthetic Rubber). These will not swell and split when exposed to current Australian fuel which is the problem with other filler neck seals on the market. These problems include reproduction seals made of Nitrile rubber. After testing many materials we found only Viton material to be superior with no negative effects. Viton has exceptional chemical resistance and most importantly swell resistance to all Aussie pump fuels including Avgas, Ethanol and Methonol.