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Small stainless steel vent drain with brushed finish, cylindrical body and threaded base

HOFFMAN

HOFFMAN AVDR4SS4 Vent Drain Stainless Steel

SKU CH-Z7VR-49WQW

Stainless steel vent drain lets accumulated water escape from the bottom of an enclosure

  • TypeElectrical Boxes & Covers
  • Allows accumulated water to drain from enclosures
  • Stainless steel construction resists corrosion in harsh environments
  • Brushed finish provides a clean, professional appearance
  • Designed as a vent drain accessory for electrical boxes
  • Suitable for use where drainage and ventilation are required

What this vent drain does

The HOFFMAN AVDR4SS4 is a stainless-steel vent drain that threads into the bottom of an electrical enclosure. It lets condensation and accumulated water escape while keeping dust and insects out. Maintenance crews and panel builders use it on outdoor or wash-down cabinets where moisture collects.

Check enclosure fit before ordering

Verify the enclosure wall thickness and the tapped hole size match the drain’s thread specification. Confirm the mounting location is at the lowest point of the cabinet so gravity can clear the water. Ensure the surrounding area stays clear so the vent opening cannot be blocked by cable trays or DIN rail hardware.

Brushed stainless steel for daily exposure

The brushed finish resists corrosion in humid or salty atmospheres and survives repeated wash-down cycles. The low-profile body sits nearly flush with the enclosure exterior, reducing snag risk on passing equipment. Once installed, the drain requires no moving parts or filters, so routine inspection is limited to a visual check that the opening stays clear.

Highlights

  • Allows accumulated water to drain from enclosures
  • Stainless steel construction resists corrosion in harsh environments
  • Brushed finish provides a clean, professional appearance
  • Designed as a vent drain accessory for electrical boxes
  • Suitable for use where drainage and ventilation are required

Specifications

BrandNVENT HOFFMAN
TypeElectrical Boxes & Covers

Questions about this item

Does the Hoffman AVDR4SS4 vent drain include mounting hardware or a gasket, or must they be purchased separately?

The vent drain is supplied as a single stainless steel component with a brushed finish; mounting screws, gaskets or additional seals are not included and must be sourced separately.

The listing shows only one model — how do I confirm this vent drain fits my enclosure's wall thickness and cut-out size?

The AVDR4SS4 is a standard H2Omit vent drain designed for typical enclosure drain holes; verify your enclosure's cut-out diameter and wall thickness against the manufacturer's datasheet before ordering.

What does the H2Omit feature actually do once the drain is installed in a live electrical cabinet?

The H2Omit design allows condensed or ingress water to exit through the bottom of the enclosure while the louvred vent blocks direct splashes and limits dust entry, maintaining drainage without compromising the enclosure's protection rating.

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