Yep, that's their website. Double checked the address against my invoice. Unfortunately, they don't seem to have the complete catalog listed. I ordered out of their paper catalog.
For your reference, my invoice shows SKU 78014 for Ultrastinger flashlight w/AC/DC. SKU 75513 for SL Stinger XTHP flashlight w/AC/DC.
Nitro-Pak, Inc - (800) 866-4876. Their sales staff has always been real nice to deal with and if you have something special, (like the XT-HP which wasn't in their catalog), they take the time to look it up for you.