18-400 Black Plastic Cone Cap Pack of 25

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Black plastic cap w/poly cone insert. Fits 30 and 60ml glass bottle with 18mm 18-400 neck

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  • 5
    18-400 Polycone Caps

    Posted by Richard on 1st Mar 2021

    These fit perfectly with my 30mL boston round bottles. I've bought several of these now.