Yes if the dimensions of the mail slot in your door is the same as this adiroffice mail chute receptacle you can use the existing door mail slot.
Through wall mail chute.
If there is a metal frame around the slot you will need to remove the frame before installing the adiroffice through the wall mail chute receptacle.
High quality through wall letter chutes manufactured only in europe with 2 years warranty and designed to withstand tough british weather.
Compatible with liberty letter plates.
Built in post boxes for houses and offices variety of sizes and finishes.
This chute is suitable for 8 to 10 inch walls the chute opening for incoming mail is 2 5 x 9 5.
Made here in the usa our through the wall mail slot includes an angled chute for wall thickness up to 5 3 4 and an optional extension to extend to a total length of 12 inches.
Adjustable from 5 to 12 inch.
The extension chute slides over the fixed chute and can be adjusted from 6 to 12 inches.
Each piece has anti phishing teeth cut into the metal to help prevent phishing.