Box Blind Window additional window kit

Expand your Box Blind Defrost System with up to two additional windows or add additional defrosters to a single window for an increased defrost area.

Easily clips into any existing Box Blind Defrost System, sku#HB200

• 1 Defrost Heat Bars with 10′ wire harness
• 1 Magnet Holder Bar
• permanent installation hardware (optional use)
• requires the purchase HB200 System
• adding additional windows to the system will affect battery life.  consider increasing the lithium battery size to 12V 12ah