Click to expand Tap to zoom Havis Prisoner Transport Power Vent Option by Havis $765.16 | / SKU PT-A-921 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Features Specifications Features Prisoner transport option Power vent (100-CFM roof mounted) Estimated install time: 1.5 hours Power vent adds 3" inches to the overall height of van Specifications Gross Weight: �6.50 lbs Abbreviated Product Description: PT, OPT, PWRVENT, SP, Download any of the following documents for additional product information: Installation Instructions (PDF) Isoview Drawing (JPG)