Extension Spring 13' Door. 57X78" 510 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 500 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 490 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 480 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 460 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 440 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 420 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 400 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 380 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 360 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 340 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 320 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 310 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 300 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 290 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 280 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 270 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 260 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 250 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 240 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 230 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 220 lbs. Clipped - The EA price is for only one spring.

Extension Spring 13' Door. 57X78" 210 lbs. Clipped - The EA price is for only one spring.