FS Hydrometer $6.50

[Jackie]

Glass Hydrometer.
I think it is better then swing arm type.
Bought extra to get free shipping.
$6.50 my cost
http://lh5.ggpht.com/_Bdkca4dIJ6A/St4X8xSjDBI/AAAAAAAAABc/qBpjU2EgeE8/s512/photo%20%282%29.jpg