Current Selected Location - Sid Harvey Garden City (0999) Garden City NY

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

Amtrol Parts Amtrol Parts B135-40 Diaphragm Type Expansion Tank 2 Gallon 1/2" MPT 15 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
• 1 Gallon maximum acceptance volume
• Made in USA
• 13" H x 8" Diameter

Sid Harvey Item #:B135-40: Replaces Part #:'s : 3207

FLEX2PRO Paint 16 ga Cold Rolled Steel Hydronic Expansion Tank 4.5 Gallon 1/2" MNPT 14" H x 11" Diameter

• 100% butyl rubber, lined with polypropylene water chamber
• Appliance quality paint for corrosion resistance
• 100% butyl rubber diaphragm
• Welded steel connection
• High pressure, seam weld, helium, final pre-charge check testing
• Brass valve with o-ring seal air valve
• 2.5 Gallon maximum acceptance volume
• 5 years warranty

BackStop H30 Metallic Silver Paint Carbon Steel Diaphragm Type Hydronic

Amtrol Parts B135-61 Diaphragm Expansion Tank 4.4 Gallon 1/2" NPTM 100 psig 30 Lbs

BackStop 12-H60 Hydronic Diaphragm Expansion Tank, 6 gal, 1/2 Inch, 16-5/8

Flexcon Flex2pro PH5 16 ga Cold Rolled Steel Thermal Expansion Tank, 2.1 Gallon, 3/4" MNPT, 200 psig, 11" H x 8" Diameter

• 100% butyl diaphragm and plastic liner to separate the system water from the tanks air precharge
• Stainless steel sleeve to prevent corrosion, something no other manufacturer offers
• Top chamber is 100% butyl rubber, lower water chamber is copolymer polypropylene
• High pressure, seam weld, helium, final precharge check testing
• Brass valve with o-ring seal
• 0.9 Gallon maximum accepted volume

Amtrol Parts B135-60 Diaphragm Expansion Tank W/Fill Valve 2 Gallon 1/2" FNPT 100 psig

Amtrol Parts B135-68 Diaphragm Expansion Tank W/444 Purger 4.4 Gallon 1/2" NPTM 100 psig

Constructed of the highest quality steel, the HTx are true work horses. HTx comes standard with a 100% butyl diaphragm. SxHT goes even one step further with our patented CAD2 diaphragm, offering even lower permeability rates at higher temperatures. Additionally, both tank lines' diaphragms are oversized, which maximizes drawdown and minimizes wear. This design feature virtually eliminates diaphragm stretch, further promoting longevity.

• 16 ga cold rolled steel tank
• Appliance-quality paint for corrosion resistance
• 100% butyl rubber diaphragm
• Welded steel connection
• High pressure, seam weld, helium, final precharge check testing
• Brass valve with O-ring seal air valve
• 1 Gallon maximum acceptance volume
• 5 years warranty

Zilmet ZEP-05 Expansion Tank 2.1G 3/4 MPT

Zilmet ZHT8-15 Expansion Tank 15