All type, Aero tank filler caps are supplied with G
Flange type, Aero tank filler caps are supplied as standard with a nitrile bonded cork gasket to BS 2020. This gasket has a nominal thickness of 1.00 mm.
We can offer gaskets in other materials at extra cost:
Nitrile Gaskets to BS 2751, Nitrile Bonded Cork
Moulded Nitrile Gasket (Aero 400 only) Moulded Nitrile
Nitrile Rubber Gasket (Aero 300 & 400 only) Nitrile Rubber
In all case it is suggested that a suitable sealant also be employed. We recommend 'Hylomar' sealant or equivalent.