Union-EQ Pump Union Black
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A pump union is a type of plumbing fitting that is used to connect a pump to a plumbing system.
It is typically made of a durable and corrosion-resistant material, such as brass or stainless steel,
and is designed to be tightened by hand or with a wrench.
The size of the union is typically measured in millimetres, and refers to the diameter of the fitting.
In this case, a pump union 50mm is a fitting that has a diameter of 50 millimeters.
It is used to connect a pump to a plumbing system with a pipe or hose of the same diameter.