Check the listing for details. Rayo Fill Cap Gaskets – 6 Pack – New. Condition: New other (see details). Listed at 4.99 USD. Rayo Fuel Filler Cap GasketsFits Rayo Lamps, Perfection, Miller, B&HAlso Fits Aladdin Fuel Filler PlugsImpervious to KeroseneWon’t Become Brittle with AgePack of 6 These gaskets fit the plugs that screw into recessed threads of Rayo-type lamps and fonts, including Rayo, Perfection, Miller, B&H, etc. Also fits Aladdin fill plugs. They are made with Nitrile rubber (also known as NBR or Buna-N) and are impervious to Kerosene. They are new, fresh, and flexible. They are half the thickness than normal so they have a low profit as you can see in the photograph of the lamp. They also seal extremely well as they conform to slight unevenness of a recessed thread rim as compared to hard flat fiber ones that are not flexible. Unlike the old fiber one (which are made from pressed paper), they do not rot over time. These remain flexible. I have a wide selection of Rayo-style fill plugs in brass, nickel, vintage and new. Choose Rayo, B&H, or Miller logos. Click “See Other Items” under “Seller Information in this listing. Free Shipping Note: To give a low price with FREE shipping, these arrive in a flat #10 first-class envelope. USPS does not provide tracking for these. . . . . . . . . . . . . . . . . . . . . . . . . . . Save $$ with Combined Shipping > I offer many small parts. Click “See Other Items“ under “Seller Information”.> Select multiple items by clicking the "Add to Cart" button.> Then check out. You will see a shipping discount for the additional small eligible items. . . . . . . . . . . . . . . . . . . . . . . . . . . 2001.2 BX 18 X 6