You are downloading the Nitrox Fill XAP file v188.8.131.52 for Windows Phone. Nitrox Fill is a free and useful Sports app: Nitrox fill calculator allows you to calculate the Nitrox and Air to add to a partially filled scuba tank to get the desired EAN fill. The ... You can now download the offline XAP file to install & try it.
Download Locations for Nitrox Fill 184.108.40.206 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Nitrox Fill XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.