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Gray iron weatherproof electrical box with lug brackets, 18 cu in capacity

Killark

Killark FSS-2M 18 cu in Electrical Box

SKU CH-91PX-N0PB9

Weatherproof iron electrical box with 18 cu in capacity, single gang, lug brackets and CSA/UL listing

  • Product typeElectrical Boxes & Covers
  • 18 cu in capacity for ample wiring space
  • Iron construction provides rugged durability
  • Gray finish resists corrosion in harsh conditions
  • UL Listed and CSA certified for code compliance
  • Single-gang FSS design with lug brackets for secure mounting

Single-gang FSS box for outdoor wiring

This 18 cu in iron box provides a single-gang enclosure rated for wet locations. The lug bracket allows direct mounting on flat surfaces without additional hardware. UL and CSA listings confirm compliance with North American safety standards for electrical enclosures.

Iron body resists impact

The cast iron construction withstands physical abuse and weather cycles better than non-metallic alternatives. Internal volume remains constant over time, so conductor fill calculations stay valid for the life of the installation. Gray finish blends with typical exterior surfaces.

Lug mounting simplifies retrofit and new work alike

Integral lugs eliminate separate mounting brackets, reducing parts and labour on site. One-gang format accepts standard device covers and accessories without adapters. Iron threads hold conduit fittings securely through vibration and thermal cycling.

How it compares

Measured against everything we stock in Electrical Enclosures & Cabinets, at today’s prices. Recalculated every night.

Price $31.99
Cheaper than about 58% of the 1,411 comparable items (median $39.99).

Specifications

Product
Brand nameHUBBELL KILLARK
Product typeElectrical Boxes & Covers

Questions about this item

Does the 18 cu in iron box run hot when powering devices all day?

The iron enclosure dissipates heat from normal wiring loads; no active cooling is needed.

What mounting hardware must I already have to install the FSS-2M box?

The box uses integral lugs, so you only need suitable screws or bolts for your mounting surface.

Will the gray FSS-2M box accept the older conduit fittings I already own?

Standard conduit entries on this UL-listed box match common trade-size fittings used with earlier iron boxes.

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