7600L Variable Volume/Conical Bottom Red Fermentation Tank w/ Manway itemID-6529 or to vent gas pressure

or to vent gas pressure in a tank

Hold the bottles upside down on white shaft and press down to inject iodophor

This tool will push the spear down

Not only do they work with all 1/2" NPT (extremely universal)

7600L Variable Volume/Conical Bottom Red Fermentation Tank w/ Manway itemID-6529 or to vent gas pressureThe FO M tank from Speidel is very similar to the the standard FO style variable volume storage tank. The FO M tank, however, has been specially altered to make it more useful as a fermentation tank, and comes pre fitted with the most standard features equipped on tanks used for red fermentations. And they have the same degree of flexibility and customization available as the standard FO style tank, but offer an easy starting point and cost savings