Blue-Max® Handhole

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Blue-Max® Handhole

Premium Blue-Max® handhole gaskets effectively prevent leaks, ensuring safe and efficient operations under high-pressure conditions.

Get a Quote Order now (502) 459-9131

We have a full inventory of OEM-compatible BLUE-MAX® Gaskets at all sizes and horsepower requirements.

  • BLM306-700
    2-1/4" x 3-1/2" x 1/2"E
  • BLM306-705
    2-3/8" x 3-3/4" x 1/2"E
  • BLM306-710
    2-3/4" x 3-1/2" x 1/2"E
  • BLM306-716
    2-3/4" x 3-3/4" x 1/2"E
  • BLM306-718
    2-7/8" x 3-7/8"x 1/2"E
  • BLM306-722
    3" x 3-3/4" x 1/2"E
  • BLM306-724
    3" x 4" x 1/2"E
  • BLM306-725
    3" x 4" x 5/8"E
  • BLM306-731
    3" X 4-1/2 x 1/2"E
  • BLM306-733
    3" x 5" x 1/2"E
  • BLM306-726
    3" x 5" x 9/16"E
  • BLM306-734
    3" x 5" x 5/8"E
  • BLM306-736
    3-1/4" x 4-1/2" x 1/2"E
  • BLM306-737
    3-1/4" x 4-1/2" x 5/8"E
  • BLM306-744
    3-1/4" x 5" x 1/2"E
  • BLM306-739
    3-1/4" x 5" x 9/16"E
  • BLM306-743
    3-1/4" x 5" x 5/8"E
  • BLM306-748
    3-1/4" x 5" x 3/4"E
  • BLM306-747
    3-1/2" x 4-1/2" x 1/2"E
  • BLM306-750
    3-1/2" x 4-1/2" x 5/8"E
  • BLM306-752
    3-1/2" x 5" x 1/2"E
  • BLM306-754
    3-1/2" x 5" x 9/16"E
  • BLM306-756
    3-3/4" x 4-3/4" x 9/16"E
  • BLM306-970
    4" x 5" x 1/2"E
  • BLM306-973
    4" x 5" x 5/8"E
  • BLM306-971
    4" x 6" x 1/2"E
  • BLM306-974
    4" x 6" x 5/8"E
  • BLM306-972
    4" x 6" x 3/4"E
  • BLM306-781
    6" x 8" x 5/8"E
  • BLM306-780
    6" x 8" x 3/4"E
  • BLM306-784
    6-1/2" x 8" x 9/16"E
  • BLM306-801
    8" x 10" x 1-1/4"E
  • BLM306-910
    2-1/2" x 3-3/4" x 1/2"OB
  • BLM306-934
    2-3/4" x 3-1/2" x 1/2"OB
  • BLM306-918
    2-3/4" x 3-3/4" x 1/2"OB
  • BLM306-928
    3" x 4" x 1/2" OB
  • BLM306-930
    3" x 4-1/2" x 9/16"OB
  • BLM306-932
    3-1/4" x 4-1/2" x 1/2"OB
  • BLM306-935
    3-1/4" x 4-1/2" x 9/16"OB
  • BLM306-933
    3-1/4" x 4-1/2" x 5/8"OB
  • BLM306-940
    3-1/2" x 4-1/2" x 1/2"OB
  • BLM306-965
    4" x 6" x 5/8"OB

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In-stock items. Order by 3:00 PM EST for Same-Day Shipping.

Need help finding the right Gasket?

We carry a large inventory and if we don’t have what you need, we can help track it down for you. Give us a call.

Get a Quote Call Us (502) 459-9131

Frequently Asked Questions About Blue-Max® Gaskets

A Blue-Max® gasket is a high-performance, heavy-duty industrial sealing component engineered from specialized woven glass fibers and a proprietary high-temperature elastomer compound. Its primary function is to deliver consistent, reliable sealing integrity for critical industrial boiler access points, specifically on the waterside of the system. These gaskets are uniquely designed to withstand severe high-pressure steam environments and aggressive water tracking lines, safely containing pressurized fluids without structural degradation.

In demanding steam and hot water applications, standard sealing materials can quickly become brittle, flatten completely, or blow out under intense thermal cycling and pressure spikes. Blue-Max® gaskets feature exceptional material recovery memory and structural flexibility. When compressed within manway or handhole inspection frames, the woven composite layout forms a rugged, fluid-tight seal that easily conforms to uneven surfaces, effectively preventing leaks and ensuring safe, stable, and highly efficient facility operations under high-pressure conditions.

Sourcing premium brand components through factory original equipment manufacturer (OEM) channels often introduces long supplier lead times, distributor backorders, and steep markup premiums. Halmar functions as an independent domestic partner, stocking a comprehensive inventory of authentic blue-max gaskets and complete boiler gasket kits directly on our warehouse shelves in Louisville, Kentucky. Our responsive team handles tech specs and dimensional cross-referencing accurately, providing immediate answers and fast same-day shipping on all in-stock parts to minimize your operational downtime.

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