• Home
• Shop By Category
  Shop By Category
  • Air Filters
  • Boilers & Hydronics
  • Controls
  • Mini Splits & Forced Air
  • PEX & Radiant Tubing
  • Plumbing & Bath
  • Radiant Heating
  • Solar & Geothermal Systems
  • Ventilation & Indoor Air Quality
• Shop By Brand
  Shop By Brand
  1. ADP
  2. AIC Alliance
  3. Airtec
  4. Amana
  5. Amba
  6. Amtrol
  7. Aprilaire
  8. Aspen
  9. Axiom Industries LTD.
  10. BestAir Pro
  11. Biasi
  12. Bisque
  13. Broan
  14. Buderus
  15. Burnham
  16. Caleffi
  17. Carel
  18. Carrier
  19. ComfortPro
  20. ComfortStar
  21. Covertech Fabricating
  22. Crown Boiler Co.
  23. Daikin
  24. Danfoss
  25. Diversitech
  1. Dunkirk
  2. Ecobee
  3. Electro Industries
  4. Emerson
  5. Eternal
  6. Fantech
  7. Flanders
  8. Fujitsu
  9. General Aire
  10. Goodman
  11. Grundfos
  12. Honeywell
  13. Hydrolevel
  14. InfraSave
  15. Kamco
  16. Laars
  17. Lanco
  18. Lennox
  19. LG
  20. Mitsubishi
  21. Modine
  22. Mr. Steam
  23. Navien
  24. New Horizon Corp.
  25. New Yorker
  1. Noble
  2. Noritz
  3. NuTone
  4. Panasonic
  5. Peerless
  6. Pensotti
  7. Pro-Fab Industries
  8. Quietside
  9. Reflectix
  10. Reznor
  11. Rinnai
  12. Runtal
  13. Samsung
  14. Sanyo
  15. Schluter
  16. Smart Electric
  17. Soler & Palau
  18. SpacePak
  19. Steam Radiators
  20. StormPro
  21. SumPro
  22. SunTouch
  23. Taco
  24. Tekmar
  25. Thermo
  1. Tile Redi
  2. Triangle Tube
  3. Unico
  4. Utica
  5. Venmar
  6. Viega
  7. Viessmann
  8. Watts Radiant
  9. Weil-McLain
  10. White Rodgers
  11. Williamson-Thermoflo
  12. Wilo
  13. WSD
• My Account
  My Account
  • My Orders
  • My Merchandise Returns
  • My Credit Slips
  • My Addresses
  • My Personal Information
  • My Vouchers
  • My Warranties
• Customer Service
  Customer Service
  • Contact Us
  • FAQ
  • Shipping Policy
  • Product Availability
  • Return Policy
  • Freight Damage
  • Using Contractors
  • Warranty Claims
  • Conditions of Use
  • Privacy Policy

Feed Valves

• Caleffi 1/2" AutoFill & Back Flow Preventer Combination, Sweat, 573009A

  

  Model: 573009A Brand: Caleffi
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Caleffi, 1/2" Sweat AutoFill & Back Flow Preventer Combination, 1/2" Swt Inlet 1/2" NPT Outlet,573009A, Hot Water Systems, Glycol Solution, Radiant Heating

  $105.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Caleffi AutoFill Automatic Boiler Fill Valve, Pressure Indicator, 1/2" Sweat Inlet x 1/2" FNPT Outlet

  

  Model: 553549A Brand: Caleffi
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Caleffi AutoFill Automatic Boiler Fill Valve, Pressure Indicator, 1/2" Sweat Inlet x 1/2" FNPT Outlet

  $65.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Caleffi Auto Fill Combo Automatic Boiler Fill Valve with Backflow Preventer, Pressure Indicator, 1/2" Sweat Inlet x 1/2" FNPT Outlet

  

  Model: 573009A Brand: Caleffi
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Caleffi AutoFIll Combo Automatic Boiler Fill Valve with Backflow Preventer, Pressure Indicator, 1/2" Sweat Inlet x 1/2" FNPT Outlet

  $102.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Taco 329-3 Fast Fill Reducing Valve, 1/2" Connection

  

  Model: 329-3 Brand: Taco
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Taco 329-3 Fast Fill Reducing Valve, 1/2" Connection

  $45.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Caleffi AutoFill Automatic Boiler Fill Valve, Pressure Indicator, 1/2" MNPT Inlet x 1/2" FNPT Outlet

  

  Model: 553542A Brand: Caleffi
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Caleffi AutoFill Automatic Boiler Fill Valve, Pressure Indicator, 1/2" MNPT Inlet x 1/2" FNPT Outlet

  $65.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Honeywell FM Boiler Fill Valve, 1/2" NPT

  

  Model: FM911 Brand: Honeywell
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Honeywell, FM911, Honeywell FM Boiler Fill Valve, 1/2" NPT

  $85.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Honeywell FM Boiler Fill Valve, 1/2" Sweat Union

  

  Model: FM450 Brand: Honeywell
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Honeywell, FM450, Honeywell FM Boiler Fill Valve, 1/2" Sweat Union

  $60.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Taco 335-3 Bronze Reducing Valve, 3/4" Connection

  

  Model: 335-3 Brand: Taco
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Taco 335-3 Bronze Reducing Valve, 3/4" Connection

  $91.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Taco 329-T3 Threaded Fast Fill Reducing Valve, 1/2" Connection

  

  Model: 329-T3 Brand: Taco
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Taco 329-T3 Threaded Fast Fill Reducing Valve, 1/2" Connection

  $45.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Taco 334-3 Fast Fill Dual Control Valve, 1/2" Connection

  

  Model: 334-3 Brand: Taco
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Taco 334-3 Fast Fill Dual Control Valve, 1/2" Connection

  $114.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Taco 3180-1 Pressure Relief Valve for 3350 Pressure Reducing Valve, 1/2" Connection

  

  Model: 3180-1 Brand: Taco
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Taco 3180-1 Pressure Relief Valve for 3350 Pressure Reducing Valve, 1/2" Connection

  $35.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Taco 334-T3 Threaded Fast Fill Dual Control Valve, 1/2" Connection

  

  Model: 334-T3 Brand: Taco
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Taco 334-T3 Threaded Fast Fill Dual Control Valve, 1/2" Connection

  $111.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Caleffi Auto Fill Combo Automatic Boiler Fill Valve with Backflow Preventer, Pressure Indicator, 1/2" FNPT Inlet x 1/2" NPT Female Outlet

  

  Model: 573002A Brand: Caleffi
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Caleffi AutoFIll Combo Automatic Boiler Fill Valve with Backflow Preventer, Pressure Indicator, 1/2" FNPT Inlet x 1/2" NPT Female Outlet

  $102.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Taco 3350-T2 Threaded Cartridge Style Pressure Reducing Valve, 1/2" Connection

  

  Model: 3350-T2 Brand: Taco
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Taco 3350-T2 Threaded Cartridge Style Pressure Reducing Valve, 1/2" Connection

  $61.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare

• Taco 3350-2 Union Cartridge Style Pressure Reducing Valve, 1/2" Connection

  

  Model: 3350-2 Brand: Taco
  
  Availability:  In stock. Ships within 3-5 days
  Shipping: Free Ground Shipping in the USA
  Taco 3350-2 Union Cartridge Style Pressure Reducing Valve, 1/2" Connection

  $61.95
  

  Add to cart View Details Tell a Friend Ask a Question

  Select to compare