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Calefactio Expansion Tanks

Calefactio Expansion Tanks

Find a wide range of expansion tanks for residential and commercial hydronic heating applications, including baseboard/radiator, radiant floor heating and others. Calefactio HGT expansion tanks are a cost-effective alternative to Amtrol Extrol, Watts ETX and B&G HFT.

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The HGSV12 from Calefactio is a 1/2” Threaded Expansion Tank Service Valve w/ Hose Drain. It's compa..
$0.00
The HGT-15 from Calefactio is an Expansion Tank (2.1 gal). It's a #15 bladder-type expansion tank de..
$0.00
The HGT-30 from Calefactio is an Expansion Tank (4.8 gal). It's a #30 bladder-type expansion tank de..
$0.00
The HGT-60 from Calefactio is an Expansion Tank (8 gal). Its a #60 bladder-type expansion tank desig..
$0.00
The HGT-90 from Calefactio is an Expansion Tank (13 gal). It's a #90 bladder-type expansion tank des..
$0.00
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