ZINC PENCIL WITH BRONZE PLUG1/4 pencil zinc complete"According to the Manufacturer"Camp Company is a leading manufacturer of marine anodes.Our zinc and aluminum sacrificial anodes are manufactured in the US to ensure the highest quality of corrosion protection.They are manufactured for use on Recreational, Commercial and Military vessels, placed on hulls, propeller shafts, rudders, trim tabs, outboard engines, stern drives, and in the cooling system of most inboard engines to protect metal parts from galvanic corrosion.Material: Zinc Alloy- For use in Salt Water;- NOT recommended for use in Fresh Water;- Alloy is manufactured to meet or exceed U.S. Military Specification (US Mil-A-18001)Dont be fooled by claims that only one alloy will protect in all water environments.AttributesCase5Size1/4" x 2"Plug1/8" NPTYou are bidding on a Brand New Item. We are a full service Marina with over 700 slips. We have been in business for over 41 years. This is not someone in there basement who knows nothing about parts and just drop ships items. We have this part in stock ready to ship. Any order paid by 4:00 will ship next business day. Anything after 4:00 will ship the following business day. We are not looking to sell a bunch of parts and move on. We are hoping that after you buy this, you will see how easy it is to deal with our company, how fast we ship, and you will call us for any and all of your future marine needs. We want your business and we will work very hard to earn it.We put the tracking number right onto ebay the next day, you are able to track your package and if you provide an e-mail we include it with your label and UPS or USPS will notify you when to expect delivery.