SIM Supply, Inc.

The Do it Best Extra Strength Indoor Window Insulation Kit is designed for high-traffic areas, offering twice the thickness of standard film to resist accidental punctures and increase R-value by up...

This Do it Window Air Conditioner Cover is designed to protect your air conditioning unit from damage caused by winter weather. Covering your window A/C unit helps reduce uncomfortable drafts and...

Value priced security for basic applications. 1-1/2" (38mm) wide laminated steel case with 4-pin tumbler mechanism. Dual-locking system independently locks each shackle leg for added strength...

This Do it Window Air Conditioner Cover is designed to protect your air conditioning unit from damage caused by winter weather. Covering your window A/C unit helps reduce uncomfortable drafts and...

Polyurethane foam for use with window air conditioning units. Wedges between sash.

Polyurethane foam for use with window air conditioning units. Wedges between sash.

This Do it Vinyl Foam Weatherseal is an extremely versatile self-stick tape with medium compression. It is suitable for a multitude of uses both indoors and out because it is water .

This Do it Vinyl Foam Weatherseal is an extremely versatile self-stick tape with medium compression. It is suitable for a multitude of uses both indoors and out because it is water .

This Do it Poly Foam Weatherseal Tape is a highly compressible self-stick tape designed for interior use. The polyurethane foam squeezes down to fill even very narrow gaps.

1-unit construction. No separate parts, preassembled so there is no contact under load except through the rolling balls. Center opening allows for center post and ease of centering the unit. Attaches...

This Do it Vinyl Foam Weatherseal is an extremely versatile self-stick tape with medium compression. It is suitable for a multitude of uses both indoors and out because it is water .

Do it Best's Window Insulation Shrink Kit is a crystal clear plastic sheet that shrinks tight and wrinkle free with an ordinary hand-held hair dryer. Easily installed on metal, painted, or varnished...