3-1/2 & 4 ELECTRICAL CONDUIT GASKET

Panel builders know that a rated enclosure is only as good as its seals, and the conduit knockout is one of the first places that rating gets tested. This 3-1/2 in. and 4 in. neoprene electrical conduit gasket is sized to fit standard 3-1/2 in. and 4 in. trade-size conduit fittings and knockouts.

This gasket is cut from closed-cell neoprene rubber, chosen for its dependable resistance to ozone, UV exposure, and everyday industrial oils and chemicals — it holds its seal even as conditions around the panel change. Panel builders and electrical contractors use this size at conduit entries into control panels, junction boxes, and industrial machinery housings.

Key Features

• 3-1/2 in. and 4 in. trade size, sized for standard conduit fittings and knockouts
• Closed-cell neoprene rubber construction
• Resists ozone, UV, and everyday industrial oils and chemicals
• Retains flexibility and compression set across a wide temperature range
• Manufactured in the USA and kept in stock

Common Applications

• Control panels and enclosures
• Industrial machinery housings
• Switchgear and junction boxes
• OEM panel assembly

We manufacture this size domestically and keep it in inventory, which means fast lead times whether you're filling a single order or restocking a panel shop customer. Contact us for bulk pricing, custom sizing, or to set up a standing stock order for your customers.