All DURA-LIFT® extension springs are manufactured from oil-tempered spring wire meeting ASTM A229 and are designed for a minimum of 10,000 cycles. Finished springs are coated for improved corrosion resistance and handling. Double loop ends are standard on all DURA-LIFT® springs.
Note: contact us if a different weight capacity is required. Clip ends are available for extension springs up to a 400 lb weight capacity.