Replacement Parts & Upgrades

Already have a HUG Hydronics system running? This is where you'll find replacement parts, upgrades, and add-ons to expand or maintain it — relay boards, pump upgrades, extra thermostats, freeze protection, and zone expansion kits. If you're designing a new system from scratch, start with The System or the Wizard instead.

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6 products

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Filter and sort

6 products

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Clear all

6 products