In this section you can find all the products belonging to our plugs category: male and female protectors. Plugs guarantee optimum protection during the production, storage and shipment of goods. Initially, our plugs were mainly used to protect hydraulic pipes and fittings. Over time, the evolution of these protectors has led to new types of applications in different market sectors (agriculture, automotive, hydraulic). For example, in addition to providing protection against dust, they can also act as an oil/fluid seal: this product upgrade resulted in the sealing plug. Plugs for Plumbing Pipes and Fittings.