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Phone: 1.800.328.0142

Email: orders@comstarproducts.com

Fax: 718-353-5998

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A Global Leader in Manufacturing and

Distributing Bio-Safe Chemical Solutions

Heating

Heating
The industry's most comprehensive product line of boiler and oil heat equipment installation, operation and service chemical products for the professional service technician.

Dear Customer,

We appreciate your interest in ComStar's effective and innovative products.

Please note that the item you have placed in your cart is considered a hazardous product and cannot be returned unless the receiver has a hazmat shipping license. Most hazardous materials may not be returned by mail.

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60 Items

Set Descending Direction
  1. Product image for Plate HX Saver, Descaler, 5 Gallons
    Plate HX Saver, Descaler, 5 Gallons
    Case Quantity: 1
    $70.11
  2. Product image for Ice Free, Fuel Oil & Diesel De-Icer, 55 Gallons
    Ice Free, Fuel Oil & Diesel De-Icer, 55 Gallons
    Case Quantity: 1
    $2,864.62
  3. Product image for Descaler "Plus", Tankless Water Heater Descaler, 1 Gallon
    Descaler "Plus", Tankless Water Heater Descaler, 1 Gallon
    Case Quantity: 4
    $32.20
  4. Product image for 90-207-leak-bubbles-yellow-fifty-five-gallon-main
    Leak Bubbles-Yellow, Fluorescent Fast Acting GAS Leak Detector, 55 Gallons
    Case Quantity: 1
    $1,599.39
  5. Product image for HD Degreaser Citrus
    HD Degreaser Citrus
    Case Quantity: 1
    $184.54
  6. Product image for HD Grease Trap Cleaner
    HD Grease Trap Cleaner
    Case Quantity: 1
    $184.54
  7. Product image for Super Heat, 8 in 1 Fuel Oil Treatment, 8 Ounces
    Super Heat, 8 in 1 Fuel Oil Treatment, 8 Ounces
    Case Quantity: 24
    $10.17
  8. Product image for Super Heat, 8 in 1 Fuel Oil Treatment, 16 Ounces
    Super Heat, 8 in 1 Fuel Oil Treatment, 16 Ounces
    Case Quantity: 24
    $12.88
  9. Product image for Super Heat, 8 in 1 Fuel Oil Treatment, 1 Gallon
    Super Heat, 8 in 1 Fuel Oil Treatment, 1 Gallon
    Case Quantity: 6
    $55.63
  10. Product image for Super Heat_5 Gal_60-150_024924601501.Main.jpg
    Super Heat, 8 in 1 Fuel Oil Treatment, 5 Gallons
    Case Quantity: 1
    $213.56
  11. Product image for Super Heat_55 Gal_60-160_024924601600_Main.jpg
    Super Heat, 8 in 1 Fuel Oil Treatment, 55 Gallons
    Case Quantity: 1
    $2,231.62
  12. Product image for Ice Free, Fuel Oil & Diesel De-Icer, 16 Ounces
    Ice Free, Fuel Oil & Diesel De-Icer, 16 Ounces
    Case Quantity: 24
    $7.50
  13. Product image for Zip Clean by Comstar 5 Gallon 55-005 024924550052
    Ice Free, Fuel Oil & Diesel De-Icer, 5 Gallons
    Case Quantity: 1
    $285.21
  14. Product image for BioFuel Treat, 7 in 1 BioFuel Treatment, 16 Ounces
    BioFuel Treat, 7 in 1 BioFuel Treatment, 16 Ounces
    Case Quantity: 24
    $7.50
  15. Product image for BioFuel Treat, 7 in 1 BioFuel Treatment, 1 Gallon
    BioFuel Treat, 7 in 1 BioFuel Treatment, 1 Gallon
    Case Quantity: 4
    $66.33
  16. Product image for BioFuel Treat, 7 in 1 BioFuel Treatment, 5 Gallons
    BioFuel Treat, 7 in 1 BioFuel Treatment, 5 Gallons
    Case Quantity: 1
    $328.00
  17. Product image for Sludge Solve, Heavy Duty Oil Sludge Eliminator, 1 Quart
    Sludge Solve, Heavy Duty Oil Sludge Eliminator, 1 Quart
    Case Quantity: 24
    $12.53
  18. Product image for Sludge Solve_1 Gal_60-245_024924602454.Main.jpg
    Sludge Solve, Heavy Duty Oil Sludge Eliminator, 1 Gallon
    Case Quantity: 4
    $50.11
  19. Product image for Sludge Solve_5 Gal_60-250_024924602508.Main.jpg
    Sludge Solve, Heavy Duty Oil Sludge Eliminator, 5 Gallons
    Case Quantity: 1
    $196.47
  20. Product image for Sludge Solve_55 Gal_60-265_024924602652_Main.jpg
    Sludge Solve, Heavy Duty Oil Sludge Eliminator, 55 Gallons
    Case Quantity: 1
    $2,114.17
  21. Product image for water absorber_1 pint_main_60330_024924603307.jpg
    Water Absorber, Water Dispersant for Fuel Oil, 1 Pint
    Case Quantity: 24
    $10.34
  22. Product image for water absorber_1QT_main_60-335_024924603352.jpg
    Water Absorber, Water Dispersant for Fuel Oil, 1 Quart
    Case Quantity: 12
    $16.65
  23. Product image for water absorber_1gal_main_60345_024924603451.jpg
    Water Absorber, Water Dispersant for Fuel Oil, 1 Gallon
    Case Quantity: 4
    $62.36
  24. Product image for water absorber_5gal_main_60350_024924603505.jpg
    Water Absorber, Water Dispersant for Fuel Oil, 5 Gallon
    Case Quantity: 1
    $307.08
  25. Product image for water absorber_55gal_main_60365_024924603659.jpg
    Water Absorber, Water Dispersant for Fuel Oil, 55 Gallon
    Case Quantity: 1
    $3,190.03
  26. Product image for fuel spill sponge_7oz_main_60205_024924602058.jpg
    Fuel Spill Sponge, 8 Ounces
    Case Quantity: 12
    $18.32
  27. Product image for fuel spill sponge_5gal_main_60206_024924602065.jpg
    Fuel Spill Sponge, 5 Gallons
    Case Quantity: 1
    $164.95
  28. Product image for Safe! Bacteria Oil Spill Eater, 8 Ounces
    Safe! Bacteria Oil Spill Eater, 8 Ounces
    Case Quantity: 12
    $11.60
  29. Product image for Safe_10LB_60-201_024924602010_main.jpg
    Safe! Bacteria Oil Spill Eater, 10 Pounds
    Case Quantity: 1
    $184.41
  30. Product image for Liquid Safe by Comstar 32 Ounces 60-203 024924602034
    Liquid Safe, Environmental Oil Spill Cleaner, 32 Ounces
    Case Quantity: 12
    $13.06
  31. Product image for Liquid Safe, Environmental Oil Spill Cleaner, 1 Gallon
    Liquid Safe, Environmental Oil Spill Cleaner, 1 Gallon
    Case Quantity: 4
    $45.10
  32. Product image for Liquid Safe, Environmental Oil Spill Cleaner, 5 Gallons
    Liquid Safe, Environmental Oil Spill Cleaner, 5 Gallons
    Case Quantity: 1
    $140.95
  33. Product image for Liquid Safe, Environmental Oil Spill Cleaner, 55 Gallons
    Liquid Safe, Environmental Oil Spill Cleaner, 55 Gallons
    Case Quantity: 1
    $1,353.06
  34. Product image for 60-405_Water_Detecting_Paste_Two_Ounce_Jar_024924604052_Main.jpg
    Water Detecting Paste, Water Level Detecting Paste, 2 Ounce Jar
    Case Quantity: 24
    $5.83
  35. Product image for 60-406_Water_Detecting_Paste_Three_Ounce_Jar_024924604069_Main.jpg
    Water Detecting Paste, Water Level Detecting Paste, 3 Ounce Tube
    Case Quantity: 24
    $7.00
  36. Product image for Freeze Free -100º Polar by Comstar 1 Gallon 35-757 024924357576
    Freeze Free -100ºF Polar, Anti-Freeze, 1 Gallon
    Case Quantity: 4
    $26.08
  37. Product image for Freeze Free_5Gal_35-755_024924357552_main.jpg
    Freeze Free -100ºF Polar, Anti-Freeze, 5 Gallons
    Case Quantity: 1
    $126.08
  38. Product image for Freeze Free_55Gal_35-756_024924357569_main.jpg
    Freeze Free -100ºF Polar, Anti-Freeze, 55 Gallons
    Case Quantity: 1
    $1,384.54
  39. Product image for Freeze Free_1Gal_35-725_024924357255_main.jpg
    Freeze Free -100ºF, Aluminum Safe Anti-Freeze, 1 Gallon
    Case Quantity: 4
    $27.62
  40. Product image for Freeze Free -100ºF, Aluminum Safe Anti-Freeze, 5 Gallons
    Freeze Free -100ºF, Aluminum Safe Anti-Freeze, 5 Gallons
    Case Quantity: 1
    $132.23
  41. Product image for 35-740 Freeze Free 55 Gallon NEW.jpg
    Freeze Free -100ºF, Aluminum Safe Anti-Freeze, 55 Gallons
    Case Quantity: 1
    $1,446.08
  42. Product image for Freeze Free -50ºF, Aluminum Safe Anti-Freeze, 1 Gallon
    Freeze Free -50ºF, Aluminum Safe Anti-Freeze, 1 Gallon
    Case Quantity: 4
    $21.46
  43. Product image for Freeze Free -50ºF, Aluminum Safe Anti-Freeze, 5 Gallons
    Freeze Free -50ºF, Aluminum Safe Anti-Freeze, 5 Gallons
    Case Quantity: 1
    $101.46
  44. Product image for Freeze Free -50ºF, Aluminum Safe Anti-Freeze, 55 Gallons
    Freeze Free -50ºF, Aluminum Safe Anti-Freeze, 55 Gallons
    Case Quantity: 1
    $1,101.46
  45. Product image for PG/EG Corrosion Inhibitor Front
    PG/EG Corrosion Inhibitor, 1.5 Pounds
    Case Quantity: 12
    $19.65
  46. Product image for PG/EG Corrosion Inhibitor, 55 Gallons
    PG/EG Corrosion Inhibitor, 55 Gallons
    Case Quantity: 1
    $477.04
  47. Product image for 35-741_RV_Freeze_Free_One_Gallon_024924357415_Main.jpg
    RV Freeze Free, RV & Marine Anti-Freeze, 1 Gallon
    Case Quantity: 4
    $13.77
  48. Product image for RV Grade Freeze Free, Propylene Glycol Anti-Freeze, 5 Gallons
    RV Grade Freeze Free, Propylene Glycol Anti-Freeze, 5 Gallons
    Case Quantity: 1
    $72.23
  49. Product image for RV Grade Freeze Free, Propylene Glycol Anti-Freeze, 55 Gallons
    RV Grade Freeze Free, Propylene Glycol Anti-Freeze, 55 Gallons
    Case Quantity: 1
    $546.47
  50. Product image for Propylene Glycol Hydrometer_35-742.jpg
    Propylene Glycol Hydrometer
    Case Quantity: 1
    $11.84
  51. Product image for Ethylene Glycol Hydrometer
    Ethylene Glycol Hydrometer
    Case Quantity: 1
    $11.84
  52. Product image for Sweet Air Spray, Odor Neutralizer, 16 Ounce Aerosol
    Sweet Air Spray, Odor Neutralizer, 16 Ounce Aerosol
    Case Quantity: 12
    $9.62
  53. Product image for Sweet Air Powder_15OZ_60-620_024924606209.Main.jpg
    Sweet Air Powder, Absorbent Odor Remover, 15 Ounces
    Case Quantity: 12
    $8.57
  54. Product image for Sweet Air Powder_5 Gal_60-623_024924606230.Main.jpg
    Sweet Air Powder, Absorbent Odor Remover, 5 Gallons
    Case Quantity: 1
    $97.80
  55. Product image for Sweet Air Powder_55 Gal_60-622_024924606223_main.jpg
    Sweet Air Powder, Absorbent Odor Remover, 55 Gallons
    Case Quantity: 1
    $938.88
  56. Product image for 60-619_Sweet_Air_Pellets_One_Pound_Five_Ounce_Pellets_024924606193_Main.jpg
    Sweet Air Pellets, Odor Remover and Absorbent, Cherry Scented, 1 Pound 5 Ounces Pellets
    Case Quantity: 12
    $7.39
  57. Product image for Sweet Air Powder and Pellets Odor Remover and Absorbent by Comstar 5 Gallon Pellets 60-624 024924606247
    Sweet Air Pellets, Absorbent Odor Remover, 5 Gallons
    Case Quantity: 1
    $89.13
  58. Product image for Sweet Air Deodorizer-HD Ind Liquid_5 Gal_05-050_024924050507.Main.jpg
    Sweet Air, Liquid Deodorizer, 5 Gallons
    Case Quantity: 1
    $100.00
  59. Product image for Sweet Air Deodorizer_55 Gal_05-051_024924050514.Main.jpg
    Sweet Air, Liquid Deodorizer, 55 Gallons
    Case Quantity: 1
    $1,161.54
  60. Product image for Cherry Bomb by Comstar 8 Ounce Gel Cup 60-621 024924606216
    Cherry Bomb, Heavy Duty Deodorant Gel Cup, 8 Ounces
    Case Quantity: 12
    $7.44
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60 Items

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