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Amtrol Parts B135-70 Diaphragm Expansion Tank 2 Gallon 3/4" MNPT 150 psi,
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Amtrol Parts SX-60V Diaphragm Expansion Tank 32 Gallon 1" NPTF 100 psi 60 Lb
Extrol expansion tanks accept expanded fluid in closed-loop hydronic systems to control pressure buildup, improve comfort and help reduce energy costs. Nearly seven decades after inventing the first diaphragm expansion tank, Amtrols lineup now includes specialty models engineered for modern, high-efficiency systems. None of it would have been possible without Extrol The One That Started It All.

• For use in large residential and light commercial applications.
• Floor-standing with rugged steelbase.
• Additional capacity to handle larger boiler systems.
• 1-Year limited warranty,
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Amtrol Parts B135-48 Diaphragm Expansion Tank,
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Amtrol Parts B135-61 Diaphragm Expansion Tank 4.4 Gallon 1/2" NPTM 100 psig 30 Lbs,
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Amtrol Parts B135-41 Diaphragm Type Expansion Tank 4.4 Gallon 1/2" MPT 30 Lbs

• Accepts expanded water as system temperature rises to reduce pressure build-up
• Helps reduce energy consumption and reduces system wear
• Suitable in propylene glycol applications with mixtures up to 50%
• Heavy-duty butyl/EPDM diaphragm
• Steel system connection
• Projection welded air valve
• Made in USA,
  
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Amtrol Parts B135-71 Diaphragm Expansion Tank 4.4 Gallon 3/4" MNPT 150 psi,
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Amtrol Parts B135-42 Diaphragm Type Expansion Tank 7.6 Gallon 1/2" MPT 60 Lbs

• Accepts expanded water as system temperature rises to reduce pressure build-up
• Helps reduce energy consumption and reduces system wear
• Suitable in propylene glycol applications with mixtures up to 50%
• Heavy-duty butyl/EPDM diaphragm
• Steel system connection
• Projection welded air valve
• Made in USA,
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Amtrol Parts SX-90V Diaphragm Expansion Tank 44 Gallon 1" NPTF 100 psi 90 Lbs
Extrol expansion tanks accept expanded fluid in closed-loop hydronic systems to control pressure buildup, improve comfort and help reduce energy costs. Nearly seven decades after inventing the first diaphragm expansion tank, Amtrols lineup now includes specialty models engineered for modern, high-efficiency systems. None of it would have been possible without Extrol The One That Started It All.

• For use in large residential and light commercial applications.
• Floor-standing with rugged steelbase.
• Additional capacity to handle larger boiler systems.
• 1-Year limited warranty,
  ,
  
  

Amtrol Parts SX-40V Diaphragm Expansion Tank 20 Gallon 1" NPTF 100 psi 40 Lbs
Extrol expansion tanks accept expanded fluid in closed-loop hydronic systems to control pressure buildup, improve comfort and help reduce energy costs. Nearly seven decades after inventing the first diaphragm expansion tank, Amtrols lineup now includes specialty models engineered for modern, high-efficiency systems. None of it would have been possible without Extrol The One That Started It All.

• For use in large residential and light commercial applications.
• Floor-standing with rugged steelbase.
• Additional capacity to handle larger boiler systems.
• 1-Year limited warranty,
  ,
  
  

Amtrol Parts B135-68 Diaphragm Expansion Tank W/444 Purger 4.4 Gallon 1/2" NPTM 100 psig,
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Amtrol Parts B135-60 Diaphragm Expansion Tank W/Fill Valve 2 Gallon 1/2" FNPT 100 psig,
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Duratrac 12-A101 Expansion Tank Potable Water 12-1/2" H x 8" Diameter 3/4" MPT