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2" Finger-Type Piston Cup Expander

Capacity
Mix Ratio
Nozzle Type
Pressure
Special Applications
Thrust
Country of Manufacture
$3.73

For use with #21-1 leather pistons in 2" diameter bulk guns.  The most economical way to reduce leakage or blow-by in a bulk gun. When placed inside the face of a piston cup, below the small steel washer, it creates a tighter seal against the inside of the gun barrel.

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