Vents are not STC'd or PMA'd.  Consult your local FAA authorities for proper field authorization options prior to install.
 
"CV-R2" is the NEXT GENERATION model of my popular CV-R1 units. CV-R2 is my solution to the old TIN CAN CESSNA VENTS.
 
EVEN FITS THOSE WITH THE CROSS BAR SUPPORT!
 
Why design a replacement vent? The original vents are hard to find, poor fit, poor airflow and most of all costly. The only other suitable alternative is put out by a major vendor which are very expensive, not modular and could use improvements.
 
CV-R2 design goals and solutions:
Better Fit: Nitrile Rubber O-Rings that have more contact surface than available options.
Modular Design: Separate barrel, manifold, and eyeball.
High Accuracy Thermometer (Thermal Option): Commercial grade thermometer. ±1 degree of accuracy and no need to calibrate.  (See thermometer specifications for more details)
Improved Cooling: Maximize cooling with laminar airflow.
Rotating Nozzle: Vent nozzle rotates for airflow directional control.
Variable Airflow: Rotating flap designs allows for precise control of airflow.
Heat Resistant Materials: PETG (barrel, manifold and eyeball), and Nitrile Rubber O-Rings.
 
Which Cessna's does it fit?
Fits Cessna's with the "Tin-Can" type air vents manufactured before 1981. Always verify your measurements to those provided prior to ordering.
 
Which Cessna's does it fit?
Fits Cessna's with the "Tin-Can" type air vents manufactured before 1981. Always verify your measurements to those provided prior to ordering.
 
"Because each item is 3D printed and assembled to order, shipping may take up to two weeks. Thermal versions of the vent may take up to three weeks to ship as the thermometers are custom built to order."