DNT Hydra HS219 Back Glass Protector

Great saver for the back glass of your DNT thermal if your hunting, hiking, or playing airsoft. make sure to use think Polycarbonate Glass (I use 3mm think I fount at Lowes and it works great). I cant 100% say what the Joule rating would be because it depends on the thickness of the Polycarbonate Glass you use. My Polycarbonate Glass just pressure fitted in place but you can also glue it if you trim to much off. I've only tried it on the DNT Hydra HS219.

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