Buy Hydraulic Door Closer -

For exterior doors, choose a closer with weather-resistant finishes and specialized hydraulic fluid that performs in extreme temperatures.

Select a model based on how often the door is used and where it is located:

Use Grade 1 for high-traffic (100+ daily cycles), Grade 2 for moderate, and Grade 3 for light residential use.

Determine if the door is left-handed or right-handed by looking at the hinge position from the pull side. 2. Choose the Right Type & Grade