The Series 6000 Thermal MultiPlane extends the versatility of standard storefront systems by offering improved thermal and structural performance with Front Set and Center Set glass plane options. Corner mullions and an optional Front Set SSG mullion with continuous head and sill members offer options to t many applications. Intermediate horizontals from Series 3000 Thermal MultiPlane (4-1/2" depth) can be used on both Front Set and Center Set congurations to allow for full length blinds or value engineering. Designed for 1" in ll, the Series 6000 Thermal MultiPlane has available glazing adapters and gasket options for in lls ranging from 1/4" to 1-1/8".