As the ultimate choice for residential and light commercial IG units, Super Spacer® Premium Plus Enhanced from Quanex continues to deliver the high performance trusted by the industry for more than 25 years. Extruded as a high-quality silicone warm-edge spacer with integrally incorporated desiccant, Super Spacer Premium Plus Enhanced features a flexible matrix that works together with a vapor barrier and secondary sealant to keep moisture out and argon gas in.