ATTENTION: During the COVID-19 outbreak we are available 8:00am-5:00pm EDT, Monday-Thursday until further notice.
We are still shipping Monday-Thursday at this time.
We're currently experiencing supply chain issues. We're doing our best to expedite shipping, and appreciate your patience.
In stock orders placed now will be shipped next business day.
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The Cal Royal Products 300 Series Door Closer comes in two versions. One version is the size 3 to 6 spring, which would be for larger exterior doors. The 3 to 6 spring size is for doors 36" to 48" wide. The second version is the size 1 to 4 spring size. The 1 to 4 is considered a Barrier Free door closer, because the spring tension can be turned down to less than 8 pounds of Resistance, making the door easy to open. The 1 to 4 should be used on interior doors and smaller, less than 36" wide exterior doors. This door closer is a standard template closer with a hole spacing of 3/4" x 9-1/16" center to center, which is what we find on many aluminum framed glass storefront doors. This closer has a 5 year warranty and is considered a Grade 1 closer, the heaviest duty rating possible.