Stainless Steel Pump Head for MKII Pump - KL03865 Type_Brewing / Fermentation Bag Stainless steel perforated false bottom

Stainless steel perforated false bottom pre-installed in cooler

Because it is reinforced

and features a hermetically sealed face

If your fermentation ended at 68F it will retain about 1 volume of CO2

Stainless Steel Pump Head for MKII Pump - KL03865 Type_Brewing / Fermentation Bag Stainless steel perforated false bottomUpgrade your MKII pump with a 304 stainless steel replacement head. Stainless steel is more durable if you are attaching ball valves. Very cccasionally the threads on the plastic head that comes standard on the MKII can break if you are using hard to close ball valves that apply a lot of torque. Stainless steel is very robust and will not break, is food grade, and well stainless.