Enclosure Hole Seals

Hoffman Hol-Sealers Hole Seals seal extra pushbutton holes, knockout openings and conduit openings. The seals can be used on enclosure walls up to 0.31 inch thick and are available in a variety of colors and sizes.

Hoffman Hol-Sealers Non-Metallic Hole Seals are designed for use in corrosive environments to seal extra pushbutton holes, knockout openings and conduit openings. They protect against dirt, dust, oil and water. They are suitable for sealing enclosure openings in industries such as chemical and petroleum processing, wastewater processing, outdoor monitoring and any other industry exposed to harsh environments.

Hoffman Hazardous Location Hole Seals are designed to be used on Increased Safety (Ex e) enclosures in IECEx or ATEX Zone 1 or 2 hazardous areas. They are certified to be used on metallic, non-painted enclosures. They are made of Type 316 stainless steel formed outer plate and a silicone rubber gasket to ensure an oil, dust and watertight seal.

Allied Moulded ULTRAPLUG Hole Plugs are designed to plug and seal unused holes in aluminum, metallic and non-metallic enclosures. They fit a wide range of sizes and feature an anti-rotational design, ensuring quick and simple assembly with no tools required.

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$218.40
Hoffman EXAS250SS6 Hazardous Locations Hole Seal Hazardous Location Hole Seals are designed to be used on Increased Safety (Ex e) enclosures in ATEX or IECEx Zone 1 or 2 hazardous areas. Certified to be used on metallic, non-painted enclosures, these hole seals are made with a robust Type 316 stainless steel formed outer plate and a silicone rubber gasket to ensure a dust-, oil- and water-tight seal.
$123.76
Hoffman EXAS200SS6 Hazardous Locations Hole Seal Hazardous Location Hole Seals are designed to be used on Increased Safety (Ex e) enclosures in ATEX or IECEx Zone 1 or 2 hazardous areas. Certified to be used on metallic, non-painted enclosures, these hole seals are made with a robust Type 316 stainless steel formed outer plate and a silicone rubber gasket to ensure a dust-, oil- and water-tight seal.
$108.64
Hoffman EXAS150SS6 Hazardous Locations Hole Seal Hazardous Location Hole Seals are designed to be used on Increased Safety (Ex e) enclosures in ATEX or IECEx Zone 1 or 2 hazardous areas. Certified to be used on metallic, non-painted enclosures, these hole seals are made with a robust Type 316 stainless steel formed outer plate and a silicone rubber gasket to ensure a dust-, oil- and water-tight seal.
$96.74
Hoffman EXAS125SS6 Hazardous Locations Hole Seal Hazardous Location Hole Seals are designed to be used on Increased Safety (Ex e) enclosures in ATEX or IECEx Zone 1 or 2 hazardous areas. Certified to be used on metallic, non-painted enclosures, these hole seals are made with a robust Type 316 stainless steel formed outer plate and a silicone rubber gasket to ensure a dust-, oil- and water-tight seal.
$83.58
Hoffman EXAS100SS6 Hazardous Locations Hole Seal Hazardous Location Hole Seals are designed to be used on Increased Safety (Ex e) enclosures in ATEX or IECEx Zone 1 or 2 hazardous areas. Certified to be used on metallic, non-painted enclosures, these hole seals are made with a robust Type 316 stainless steel formed outer plate and a silicone rubber gasket to ensure a dust-, oil- and water-tight seal.
$62.58
Hoffman EXAS075SS6 Hazardous Locations Hole Seal Hazardous Location Hole Seals are designed to be used on Increased Safety (Ex e) enclosures in ATEX or IECEx Zone 1 or 2 hazardous areas. Certified to be used on metallic, non-painted enclosures, these hole seals are made with a robust Type 316 stainless steel formed outer plate and a silicone rubber gasket to ensure a dust-, oil- and water-tight seal.
$50.82
Hoffman EXAS050SS6 Hazardous Locations Hole Seal Hazardous Location Hole Seals are designed to be used on Increased Safety (Ex e) enclosures in ATEX or IECEx Zone 1 or 2 hazardous areas. Certified to be used on metallic, non-painted enclosures, these hole seals are made with a robust Type 316 stainless steel formed outer plate and a silicone rubber gasket to ensure a dust-, oil- and water-tight seal.
$50.53
Allied Moulded AMHS400-GY Gray Hole Seal for Micro and for pilot light 4.5"-4.75" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$43.31
Allied Moulded AMHS350-GY Gray Hole Seal for Micro and for pilot light 4"-4.25" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$37.90
Allied Moulded AMHS300-GY Gray Hole Seal for Micro and for pilot light 3.5"-3.75" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$31.58
Allied Moulded AMHS250-GY Gray Hole Seal for Micro and for pilot light 2.875"-3.125" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$23.37
Allied Moulded AMHS200-GY Gray Hole Seal for Micro and for pilot light 2.5"-2.75" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$19.85
Allied Moulded AMHS150-GY Gray Hole Seal for Micro and for pilot light 2"-2.187" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$17.14
Allied Moulded AMHS125-GY Gray Hole Seal for Micro and for pilot light 1.687"-1.875" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$13.99
Allied Moulded AMHS100-GY Gray Hole Seal for Micro and for pilot light 1.375"-1.625" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$10.74
Allied Moulded AMHS075-GY Gray Hole Seal for Micro and for pilot light 1"-1.312"" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$9.47
Allied Moulded AMHS050-GY Gray Hole Seal for Micro and for pilot light .812"-.937" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$8.84
Allied Moulded AMHSPL-GY Gray Hole Seal for pilot light .625"-.812" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$8.84
Allied Moulded AMHSPL-SGY Gray Hole Seal for Micro and for pilot light .5"-.624" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$50.53
Allied Moulded AMHS400 Gray Hole Seal for Micro and for pilot light 4.5"-4.75" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$43.31
Allied Moulded AMHS350 Gray Hole Seal for Micro and for pilot light 4"-4.25" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$37.90
Allied Moulded AMHS300 Gray Hole Seal for Micro and for pilot light 3.5"-3.75" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$31.58
Allied Moulded AMHS250 Gray Hole Seal for Micro and for pilot light 2.875"-3.125" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$23.37
Allied Moulded AMHS200 Gray Hole Seal for Micro and for pilot light 2.5"-2.75" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$19.85
Allied Moulded AMHS150 Gray Hole Seal for Micro and for pilot light 2"-2.187" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$17.14
Allied Moulded AMHS125 Gray Hole Seal for Micro and for pilot light 1.687"-1.875" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$13.99
Allied Moulded AMHS100 Gray Hole Seal for Micro and for pilot light 1.375"-1.625" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$10.74
Allied Moulded AMHS075 Gray Hole Seal for Micro and for pilot light 1"-1.312"" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$9.47
Allied Moulded AMHS050 Gray Hole Seal for Micro and for pilot light .812"-.937" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$8.84
Allied Moulded AMHSPL Gray Hole Seal for pilot light .625"-.812" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$8.84
Allied Moulded AMHSPL-S Gray Hole Seal for Micro and for pilot light .5"-.624" max hole diameter. Fast, flexible and reusable. Easy to use and install with 1 person. Polycarbonate hole plug with Neoprene Gasket Threaded mount.
$100.49
Hoffman AS300350400NM Non-Metallic Gray Hole Seal 3.5"
Hoffman AS150200250NM Non-Metallic Gray Hole Seal 1.95"
Hoffman ASPB100125NM Non-Metallic Gray Hole Seal 1.36"
$33.02
Hoffman ASPB05075NM Non-Metallic Gray Hole Seal .86"
$248.30
Hoffman AS400SS Stainless Steel Hole Seal for 4-in. conduit holes for 4.62" max hole diameter. Stud, seal, backplate, and wingnut are 300 series stainless steel. For enclosure walls up to .31" or 8 mm thick.
$221.00
Hoffman AS350SS Stainless Steel Hole Seal for 3 1/2-in. conduit holes for 4.12" max hole diameter. Stud, seal, backplate, and wingnut are 300 series stainless steel. For enclosure walls up to .31" or 8 mm thick.
$187.20
Hoffman AS300SS Stainless Steel Hole Seal for 3-in. conduit holes for 3.62" max hole diameter. Stud, seal, backplate, and wingnut are 300 series stainless steel. For enclosure walls up to .31" or 8 mm thick.
$172.90
Hoffman AS250SS Stainless Steel Hole Seal for 2 1/2-in. conduit holes for 3" max hole diameter. Stud, seal, backplate, and wingnut are 300 series stainless steel. For enclosure walls up to .31" or 8 mm thick.
$97.11
Hoffman AS200SS Stainless Steel Hole Seal for 2-in. conduit holes for 2.5" max hole diameter. Stud, seal, backplate, and wingnut are 300 series stainless steel. For enclosure walls up to .31" or 8 mm thick.
$87.75
Hoffman AS150SS Stainless Steel Hole Seal for 1 1/2-in. conduit holes for 2" max hole diameter. Stud, seal, backplate, and wingnut are 300 series stainless steel. For enclosure walls up to .31" or 8 mm thick.
$78.13
Hoffman AS125SS Stainless Steel Hole Seal for 1 1/4-in. conduit holes for 1.69" max hole diameter. Stud, seal, backplate, and wingnut are 300 series stainless steel. For enclosure walls up to .31" or 8 mm thick.
$67.99
Hoffman AS100SS Stainless Steel Hole Seal for 1-in. conduit holes for 1.38" max hole diameter. Stud, seal, backplate, and wingnut are 300 series stainless steel. For enclosure walls up to .31" or 8 mm thick.
$55.90
Hoffman ASPBSS Stainless Steel Hole Seal for 30.5-mm Push Button holes for 1.25" max hole diameter. Stud, seal, backplate, and wingnut are 300 series stainless steel. For enclosure walls up to .31" or 8 mm thick.
$50.83
Hoffman AS075SS Stainless Steel Hole Seal for 3/4-in. conduit holes for 1.06" max hole diameter. Stud, seal, backplate, and wingnut are 300 series stainless steel. For enclosure walls up to .31" or 8 mm thick.
$39.78
Hoffman AS050SS Stainless Steel Hole Seal for 1/2-in. conduit holes for .88" max hole diameter. Stud, seal, backplate, and wingnut are 300 series stainless steel. For enclosure walls up to .31" or 8 mm thick.
$39.78
Hoffman ASPBGSS Stainless Steel Hole Seal for 22.5-mm Push Button holes for .8" max hole diameter. Stud, seal, backplate, and wingnut are 300 series stainless steel. For enclosure walls up to .31" or 8 mm thick.
$43.94
Hoffman AS056MSS Stainless Steel Hole Seal for Micro for .56" max hole diameter. Stud, seal, backplate, and wingnut are 300 series stainless steel. For enclosure walls up to .31" or 8 mm thick.