Manufacturer Profile
S-4750 Single Hung
View all NRCan-certified window series and their energy efficiency metrics.
1
Product Series
36.4
Avg ER Score
Certified Product Series
S-4750
Vinyl
Top Variants by Energy Rating
#NR001428...
U-Factor: 1.22ER: 40
#NR001428...
U-Factor: 1.27ER: 39
#NR001428...
U-Factor: 1.22ER: 37