Universal AC Remote Control RG57A4/BGEF for Air Conditioner RG57B/BGE7091
You don't need care about . As long as your old remote control is similar to this item, it can work with your AC. Many use the same remote control like Carrier//FRIMEC/ Splendid/ECOXTOSHIBA.
It works with all R57 series and all RG57 series remote controls like: R57B1/BGE RG52A2/BGEFU1 RG57/BGE RG57A/BGE RG57A1(B)/BGE RG57A1(B)/BGEF RG57A1/BGEF RG57A1B/BGEF RG57A2/BGEF RG57A3/BGEF RG57A4/BGEF RG57A6/BGEF RG57A6/BGEFU1 RG57A7(B)/BGEF RG57A7/BGEF RG57B(B)/BGE RG57B/BGE RG57B/BGEFU1 RG57B/BGE-OS RG57B/BGEU1 RG57B1/BGE RG57B2/BGE RG57BB/BGE RG57D/BGE RG57D1(C)/BGEF RG57E1/BGEU1 ...
Maybe this remote control looks different from your old remote control,but this one is an updated one can work with your AC.

Use:Air Conditioner
Wireless Communication:IR
Frequency:433 MHz
Channel:1
Model Number:RG57A4/BGEF
color:White
Material:plastic

Package Contents:
1 x Universal AC Remote Control