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Amtrol designed and patented the first Extrol diaphragm expansion tank in 1954 to control system pressure and help reduce energy consumption in heating and chilled water systems. Over 6 decades later, Extrol is still the worlds leading expansion tank brand, setting the standard for quality, reliability and innovation. All Extrol tanks are made in the USA at our ISO registered facilities by American workers dedicated to producing the highest quality expansion tanks in the world.
  • 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
  • 2.5 gal maximum accepted volume
Sid Harvey Item #:B135-41: Replaces Part #:'s : L86-191
Item#:
B135-41
Manufacturer Item:
30
Manufacturer:
AMTROL INC
Amtrol EXTROL EX-60 Urethane Topcoat Steel In-Line Diaphragm Type Hydronic Expansion Tank, 7.6 gal, 1/2 Inch NPTM, 100 psig, 23 Inch H x 11 Inch Dia.
  • 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
  • 2.5 gal maximum acceptance volume
  • Made in USA
Sid Harvey Item #:B135-42: Replaces Part #:'s : 37976
Item#:
B135-42
Manufacturer Item:
60
Manufacturer:
AMTROL INC
Thermal expansion occurs as domestic water is heated. Left unchecked, the resulting pressure increase can cause relief valve discharge and other potentially hazardous conditions. Therm-X-Trol® expansion tanks absorb this expanded water, keeping water pressure at a safe level.
  • Antimicrobial liner neutralizes bacteria on contact
  • Turbulator water diffuser
  • Deep drawn steel domes for 2X the strength of other tanks
  • Thickest diaphragm for extra long life
  • Hoop and groove design for added reliability
  • Stainless steel system connection
  • 0.9 gal maximum accepted volume
Sid Harvey Item #:B135-70: Replaces Part #:'s : 3236
Item#:
B135-70
Manufacturer Item:
ST5
Manufacturer:
AMTROL INC
Amtrol EXTROL EX-15 Urethane Topcoat Steel In-Line Diaphragm Type Hydronic Expansion Tank, 2 gal, 1/2 Inch NPTM, 100 psig, 13 Inch H x 8 Inch Dia.
  • 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
  • 1 gal maximum acceptance volume
  • Made in USA
Sid Harvey Item #:B135-40: Replaces Part #:'s : 3207
Item#:
B135-40
Manufacturer Item:
B135-40
Manufacturer:
AMTROL INC
Thermal expansion occurs as domestic water is heated. Left unchecked, the resulting pressure increase can cause relief valve discharge and other potentially hazardous conditions. Therm-X-Trol expansion tanks absorb this expanded water, keeping water pressure at a safe level. Amtrol invented the thermal expansion tank to control pressure build-up in closed, potable water systems. This prevents the water heater pressure relief valve from opening, saves energy and eliminates a potential safety hazard.
  • Antimicrobial liner neutralizes bacteria on contact
  • Turbulator water diffuser
  • Deep drawn steel domes for 2X the strength of other tanks
  • Thickest diaphragm for extra long life
  • Hoop and groove design for added reliability
  • Accepts expanded water as system temperature rises and returns hot water to system when demand occurs
  • Multiple units can be installed to accommodate larger systems
  • Stainless steel system connection
  • Heavy-duty butyl NSF/ANSI 61 diaphragm
  • Antimicrobial liner protection
  • Projection welded air valve
  • InSight indicator cap
  • 0.73 maximum accept factor
  • Non-ASME tank
  • 5 year warranty
  • Made in USA
Sid Harvey Item #:B135-71: Replaces Part #:'s : 3231
Item#:
B135-71
Manufacturer Item:
ST12
Manufacturer:
AMTROL INC
Amtrol 2704-093 Mechanical Aquastat Control
Sid Harvey Item #:2704-093: Replaces Part #:'s : 4G7748
Item#:
2704-093
Manufacturer Item:
393232
Manufacturer:
AMTROL INC
Amtrol FILL-TROL FT-110-01 Urethane Topcoat Steel In-Line Diaphragm Type Hydronic Expansion Tank, 4.4 gal, 1/2 Inch NPTM, 100 psig, 16 Inch H x 11 Inch Dia.
  • Fill-Trol models eliminate the need for a separate automatic fill valve
  • Tank pressure controls system fill
  • Heavy-duty butyl/EPDM diaphragm
  • Steel system connection
  • Projection welded air valve
  • 2.5 gal maximum acceptance volume
  • Made in USA
Sid Harvey Item #:B135-61: Replaces Part #:'s : 3199
Item#:
B135-61
Manufacturer Item:
110-01
Manufacturer:
AMTROL INC
Amtrol has a long tradition of innovative products for the plumbing and heating market, including BoilerMate, the industry's first indirect-fired water heater. Nearly four decades later, our residential lineup includes new models and options to fit any budget. All BoilerMate water heaters are made in the USA and continue to represent a great value in comfort, efficiency and long-term reliability. BoilerMate Hot Water Makers offer great value and dependable performance with options to fit any installation and budget.
  • High density poly bottle withstands aggressive water
  • Molded insulation minimizes heat loss
  • Top or bottom mount heat exchanger
  • Mechanical or digital temperature control
  • Deep drawn dome offers twice the strength of traditional construction
  • Precision welded with rugged steel base
  • Finned design for effective heat transfer
  • Removable for cleaning and service
  • 6 years factory warranty with limited lifetime option
Item#:
CH-41Z
Manufacturer Item:
399087
Manufacturer:
AMTROL INC
Amtrol invented the indirect-fired water heater over 30 years ago, redefining the best solution for fast, efficient and reliable hot water. True to their heritage, BoilerMate Hot Water Makers offer great value and dependable performance with options to fit any installation and budget.
  • High density polyethylene (HDPE) bottle for clean, fresh water
  • Corrosion proof material is impervious to chlorides, scale and aggressive water; no anode rod required
  • Advanced high-temp polymer rated to 180 deg F
  • Unique molded insulation eliminates gaps to minimize heat loss
  • Form fitted to bottle and outer shell for enhanced efficiency
  • Deep drawn dome offers twice the strength of traditional construction
  • Precision welded with rugged steel base
  • Finned design for effective heat transfer
  • Removable for cleaning and service
  • Affordable double wall option for regional code compliance
  • Mechanical aquastat provides reliable simplicity
  • Digital temperature control offers electronic accuracy and eliminates external relays
  • Homeowner-purchased upgrade administered directly by Amtrol
  • 3/4" NPTF boiler supply and return
Item#:
2703Z01-5
Manufacturer Item:
2703Z01-5
Manufacturer:
AMTROL INC
The Amtrol mixing valve is constructed with a temperature adjusting handle for quik and easy alteration of mixed water temperature. A turn of the handle adjusts the temperature over a range from about 110 - 170 deg F. A position that prevents scaling water from arriving at the outlet fixture is most desirable approximately 120 deg F is satisfactory for most hot water uses other than dish washing and laundry machines.
  • Non-corrosive parts for clean rust-free water
  • Lever-type adjustment
  • Powerful sensitive thermostat fir instant response to changes in supply water temperature
  • Knurled cap permits easy removal of thermostat assembly during installation
  • Stainless steel return spring
Sid Harvey Item #:B48-40: Replaces Part #:'s : B48-40
Item#:
B48-40
Manufacturer Item:
420-1
Manufacturer:
AMTROL INC
Amtrol has a long tradition of innovative products for the plumbing and heating market, including BoilerMate, the industry's first indirect-fired water heater. Nearly 4 decades later, our residential lineup includes new models and options to fit any budget. All BoilerMate water heaters are made in the USA and continue to represent a great value in comfort, efficiency and long-term reliability. BoilerMate Hot Water Makers offer great value and dependable performance with options to fit any installation and budget.
  • High density poly bottle withstands aggressive water
  • Molded insulation minimizes heat loss
  • Top or bottom mount heat exchanger
  • Mechanical or digital temperature control
  • Deep drawn dome offers twice the strength of traditional construction
  • Precision welded with rugged steel base
  • Finned design for effective heat transfer
  • Removable for cleaning and service
  • 6 years factory warranty with limited lifetime option
Item#:
CH-41ZRED
Manufacturer Item:
CH-41ZRED
Manufacturer:
AMTROL INC
Amtrol 940R101 Smart Control Unit with Thermistor for WH-7 Series Water
Item#:
940R101
Manufacturer Item:
396411
Manufacturer:
AMTROL INC
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