[ARCTIC TERN] Window 450x610 / 17.72"x24.01"

Arctic Tern Window 450x610 / 17.72"x24.01"

I purchased 3 of these 450x610 windows (along with a few others of various sizes). I like the size because they are small enough to easily fit in many areas yet large enough to act as an emergency egress or escape hatch. Safety is an important feature in my build. The retractable blinds and bug screen are a brilliant feature. I like the clever use of the automotive style gaskets with clamping ring (no adhesives required), though the clamping screws require a bit of patience... My walls finished out to 3-1/8 inch thick. The largest trim ring available was for wall thicknesses of 2.91 inches max. I purchased longer SS screws (30mm). This left me with an unsightly 3/8" gap between the window frame and clamp ring. I solved this by simply using strips of 1/16" Polywall utility panel obtainable at most any big -box hardware stores. I cut the panel lengthwise into 2-1/2" strips. This gave me about a 1/4" of lip beyond the clamp-ring protruding into the blind/screen frame area flush creating a nice, finished look. I secured the strips using Sil-Bond clear RTV 4500 and a few strategically place rivets. I cut tight fitting plugs from scrap 2" xps foamboard to evenly apply pressure around the strip as the RTV cured overnight, then reinstalled the blinds. Hope this helps others with their projects! I truly am very pleased with the quality and engineering of these windows! They are vastly superior to anything in the North American RV industry!

Great size for my sliding door. I had a mix-up with the trim ring and ordered the wrong size. I was able to order the correct size and Expedition Upfitter was super helpful with this. Thanks for such great customer service.

Our window arrived Monday in pristine condition. I would like to thank you very much for your help and personal attention. I unpacked it and began my template yesterday, finishing my day by applying the template to my already roughed-out PVC frame. This morning I am cleaning up some cuts to insure a "click" fit in the Promaster. I will be documenting all this process and posting it up on a couple of Promaster build-out forums. I will also let them know what a pleasure you have made my experience. There has been some concern, me included, about Arctic Tern sourcing out window sales. My concerns no longer exist and I will gladly return to you for the last two windows we will need. I will give you a four-star rating. As the last two are back door windows and will not contaminate the interior with metal shards during installation, they will be a couple of months out as I build and install my cabinets, electrical and such.
Thanks again Katie!
Cheers,
MB

I was pretty hesitant before tackling the install and cutting a hole in my camper. The instructions were great and the customer service from EXUP was top notch!