Taco SR504-EXP-4 4 zone hydronic switching relay
$281.66281.66Taco SR504-EXP-4 4 zone hydronic switching relay, expandable; replaces SR504-EXP and SR504-EXP-1
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Taco SR504-EXP 4 zone hydronic switching relay, expandable; replaces SR504-EXP and SR504-EXP-1
This part replaces those listed below:
| manufacturer | part number(s) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Taco | SR504-EXP |
SR504EXP |
|||||||
| SR504-EXP-4 | SR504EXP4 | ||||||||
| SR504-EXP-1 | SR504EXP1 | ||||||||