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Model 21 140-200°F (60-93°C)
Model 21H 100-200°F (38-93°C)
Model 21LT 100-140°F (38-60°C)
Model 21 provides wide temperature adjustment range for hot and cold water mixing in applications other than domestic hot water.
Model 21H provides widest temperature adjustment range for radiant heating applications where accurate temperature control is less critical.
Model 21LT provides the greatest accuracy of temperature control in mixing domestic water.
This item is cost-prohibitive to ship on its own but is available to ship with orders over $200.
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