One is filled with a red spirit line and one with a green spirit line. Both have been hand-tested and are in full working order, responding quickly to temperature changes.
Vintage Boots Wine & Beer Taster
Wine and Beer Tester Vintage Boots Home brew item. Instructions & Original box.
VINTAGE BOOTS PLASTIC HYDROMETER TO MEASURE SPECIFIC GRAVITY IN WINE/BEER
Boots Vintage Wine & Beer Thermostats 150w + 50w, Tested,Working, Home Brewing
Vintage glass Boots thermostatic home brew immersion heater Bundle 1980s Beer
