There are many differences when you look at time as a cost. Our boxes are pre-assembled and can be installed in minutes and do not require any additional attention or a return visit. It reduces your overall exposure (liability) both in the short and long term by;

Short Term - Can stand up to the abuse of the construction process, eliminating your need to replace or repair them.

Long Term - Properly installed our boxes and sleeve models are designed to perform as intended under the harshest environments for many years with little or no maintenance cost.

As with any conditioned environment a relative low humidity and maintained temperature between 74 to 80 degrees is recommended.  We are addressing several factors, most importantly is the proper operation of the back draft damper. Our patented design prevents exterior air from entering and mixing with conditioned interior air which would and does provide the right conditions for mold development in and around the bathroom exhaust fan.  In addition, this prevents corrosion in the dryer duct and assembly. 

Eliminates water / sand intrusion

We recommend using our box along with proper construction sealant (Sika Flex, Dymeric 112 are suitable) installed in a properly sized rough opening directly on the CMU or PIP surface.  Regarding “Eliminates water intrusion” we are implying that with proper installation water will not enter the building at the box location.  We have a monolithic box cavity design which eliminates the seam between the box cavity and the louver.  This has and continues to be a direct source of water intrusion and also contributes to mold and mildew.

 Orders less than 50 typically take about two days to ship.  Larger orders normaly ship within two weeks.  

 No, there are no minimum orders, however we do offer volume pricing, please give us a call.

Our box and sleeve models are molded from a plastic polymer (15% Fiberglass Reinforced, Flame Retardant with UV inhibitors Polypropylene). This material has been tested and achieved a UL 94  V-O Flame Spread Rating.  In addition this material has a 230 degree threshold and can perform continuously without compromising the designed operation. 

 Yes, just give us a call or e-mail your request and we’ll sent one out to you.

 Yes, we offer different mounting techniques that will offer you the option to install on finished exterior surfaces such as brick, precast and various types of cladding.

 Yes, we ship all over the world.