Window Spacers - What's the difference?

When it comes to the energy-efficiency of a multi-pane window, do window spacers really make that much of a difference?

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Window replacement - To sash or not to sash?

Today's window technology fights the climate

Energy Star product specification comparisons

Today's window technology fights the climate

Exterior window colours, there is a difference!

Premium-grade vs builder-grade windows

Window efficiency by window style

Window Spacers - What's the difference?

COALITION® Stand-Alone ACDF Spacer

Distans strip druspitz pl 20 l=1000mm (2x500mm) - spacer

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Flat Spacer, Reduce Friction 7 Sizes Good Toughness Nylon Stable

Chantelle C Magnifique T-shirt Spacer Minimizing Bra In Black