Fehr Garage Door 25"X42" Extension Spring with Clip End For 7' Door (Heavy Weight) Weight:400lbs 5 hours (5V/1A USB input)

5 hours (5V/1A USB input) or 4 hours (12V DC input)

2" x 72'' Residential Corner Post Standard Flat Head (Black)

Field adjustable

NEC Class I

Fehr Garage Door 25"X42" Extension Spring with Clip End For 7' Door (Heavy Weight) Weight:400lbs 5 hours (5V/1A USB input)Fehr Garage Door 25"X42" Extension Spring with Clip End For 7' Door (Heavy Weight) The Fehr EXT2542 Series Extension Springs with clip ends (Heavy Weight) are designed to provide reliable lifting assistance and balanced operation for 7 foot high garage doors. Manufactured using premium oil tempered spring wire rated meeting ASTM A229, and are designed for a minimum of 25,000 standard operational cycles. Finished springs are coated for improved