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These are the interchangeable crushing sleeves. Top is the 5mm sleeve and bottom is the 10mm sleeve. For those of you who remember my posts about taking my kids toys to pieces, the 10mm sleeve is the one that has the none return valve in it from one of my sons water pistols.
Detail of the 10mm sleeve
And the 5mm sleeve
Both sleeves are fitted into 20mm OD pipe which was swaged out to be a tight fit in a standard 21.5mm PET neck.
A small lip stops the sleeve assambly falling into the bottle. |
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