The FPI AstroCapw and FPI Riser Vent terminal are certified for installations using FPI venting systems as well as Simpson Dura-Vent• Direct Vent. American Metal Products Ameri Vent Direct Vent. Security Secure Venr. ICC Excel. Selkirk Direct-Temp. AstroCari is a proprietary trademark of FPI Fireplace Products International Ltd. Dura-Vent@