57 Series Heavy Duty Window Balance 57-33s45

Heavy Duty window channel balance stamped 33 45. Balance Length: 33". Sash Weight: 45 lbs. Channel Width: 3/4". Channel Depth: 1-1/4". 57 Series non-tilt window balance. These balances are designed for heavy duty commercial windows. 57 Series balances have two internal springs compared to our 58 series which has a wider channel width and uses four internal springs.

Top bracket is part number 57-500 and bottom bracket is part number 57-501. Top and bottom guides shown in picture will automatically be attached to your balance unless otherwise specified.

***Special order, non-returnable. Allow around 1 to 2 weeks to ship.