The NEW ATTWOOD MARINE PRIMER BULB is a high-quality product from Attwood Marine, designed for marine use. This low-perm 5/16" primer bulb is reliable and durable, ensuring smooth operation of your boat's starting system. With a 1-year warranty, you can have peace of mind knowing that you are getting a top-notch product that will last. The manufacturer part number ATT 93516LP7 adds to its authenticity and compatibility with your boat's system. Trust in Attwood Marine to provide the best marine parts and accessories for your boating needs.