We have 4 types of Pencil / Engine Zincs.--Use pencil zincs to protect engines, heat exchangers, pipes, condensers, water cooling jackets, etc.
Type C has a steel wire core that helps the anode hold onto that last bit of zinc. Have NF threads and cost less
Type P function the same as above but without the steel wire, Have NC threads
Please note that type C and P are not interchangeable.- but you can use a complete C instead of a P-
Type G screw together for any desired length.
Type S Slide onto a 3" or 6"steel rod

For wholesale or resale pricing, please call, e-mail or fax with the quantity. Thanks!