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Hot Water Heaters - Electric - Propane - Gas - Tankless - Instant Hot Water! Water Heaters
Stainless Steel Vent Pipe in several sizes Vent Pipe
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Caleffi iSolar Buy Page

Differential temperature controllers for solar water heating

Model
Your Cost Change quantity in your Shopping Cart. You can always remove items later.
Caleffi iSolar 1 with 1 pump control relay, includes 3 temperature sensors, Vbus connection - 257210A $234.75 
Caleffi iSolar 3 with 2 control relays for solar pump and second pump or valve, includes 2 sensors, Vbus connection - 257230A $289.75 
iSolar Delta T Replacement Sensors
Caleffi FKP6 collector sensor with 5 foot black cable - 257205 $30.75 
Caleffi FRP6 storage tank sensor with 8 foot gray cable - 257206 $28.75 
Caleffi FKP9 collector screw mount sensor with 5 foot black cable - 257207 $41.75 
Caleffi Replacement Fuse T4A - 257208 $1.95 

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