Attwood Springlift SL13

Series 13 Specifications (Up Grade to Stainless Click Here) All series 13 are 15" long expanded and 9 1/2" long closed. They have 3/8" ball socket type ends with a rod diameter of 1/4" and a cylinder diameter of 5/8". Economy Springs Marine's best low cost gas spring - for applications where the look and rust resistance of stainless aren't a concern. California Residents:  WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov.