Choosing the right cap or plug to protect your application can be challenging. Our guide provides an easy way to choose the perfect solution to protect fittings and vital components against damage, moisture and corrosion with durable, easy to install Caps & Plugs from Essentra. Our range includes imperial and metric sizes, push fit and threaded styles, and industry-specific products such as flange covers, hydraulic caps and plugs, bolt and screw caps, and masking items.