DOUBLE HUNG - ELITE SERIES
- Integral full-length interlock with silicone treated, high-pile weatherstripping adds strength and security while reducing air infiltration for greater thermal performance.
- Interlock and lock handles on all sizes are metal reinforced for strength and durability.
- Side load sash operates on two concealed pre-calibrated sash balances.
- Integral lift rail makes opening smooth, sure and easy.
- Cam lock and keeper provide a virtually weatherproof seal.
- Fully weatherstripped on the perimeter for greater energy efficiency.