About Careers Contact Us Select Region Products Brands Markets Resources Connect Breadcrumb Products Heating Chemicals & Antifreeze Descaler DESCALER Hercules® Descalers quickly and easily dissolve inorganic deposits that restrict flow to restore circulation and heat transfer efficiency. Citric acid-based, non-corrosive and VOC free, it removes carbonates, sulfates, phosphates, rust, oxides and other mineral deposits. Hercules Descalers extend the life of the appliance when used as part of a regularly scheduled preventative maintenance program. Filter by Brand Color / Finish Material Size System Type Weight Reset Filters Showing 1 of 1 Hercules® Haymaker® Tankless Water Heater Descaler We use cookies to collect information about how you use our site, monitor site performance, and improve your experience. By using our website you agree to these Terms of Use. I AGREE Helpful Resources VIDEOS How to Descale a Tankless Water Heater SEE MORE FAQs What is the warranty on the pump that comes with the Haymaker Kit? What are the specs for the pump that come with the Haymaker Kit? How does Haymaker Tankless Water Heater Descaler compare to vinegar? SEE MORE OATEY BLOG How to Keep Your Tankless Water Heater at its Best 7 Fall Maintenance Tips for Homeowners to Prepare for Winter SEE MORE CASE STUDIES Hercules Haymaker Q&A - T&T Plumbing SEE MORE HAVE A QUESTION? ASK OATEY! the choice of plumbing professionals Resources FAQs Videos Blog Case Studies Plumbing Terms Blue Volt Training Data Sheets (SDS) & Product Literature BIM Revit CSI 3 Part Spec Oatey Limited Warranty ARCAT Catalogs Company Info About Us Oatey University Careers News & Press Idea Portal Connect With Us CONTACT US Patents | Trademarks | Supply Chain Information | Privacy and Terms of Use © 2021 Oatey. All Rights Reserved. Feedback