Due to supply chain disruptions and new warehouse safety measures some shipments may be delayed up to 72 hours.
Heat Exchanger Anodes - Zinc
ZEP-B-4 has a galvanized pipe insert core, 3/8" or 1/2" Iron Pipe Size.
ZEP-B-9-3/8 has two 3/8" galvanized pipe insert cores on 3-1/2" centers.
Built to military specification MIL-A-18001
Made in California, USA