|Name||14 in. x 14 in. RV Vent Insulator, PDQ (Without Reflective)||Vent Insulator||Pump Converter Winterizing Kit||Quick-Turn RV Permanent By-Pass Kit|
|Automotive Part Type||5th Wheel Hitch/Accessory||5th Wheel Hitch/Accessory||5th Wheel Hitch/Accessory||5th Wheel Hitch/Accessory|
|View Product||View Product||View Product||View Product|
I have that product and they do stay in place. They are slightly larger than the opening and the friction holds them there.
The device is nearly 3" thick and depends on a friction fit. You may have to use a screw driver and remove the crank handle each time. You could just leave the handle off and push it on each time you want to open or close the vent.