Sealproof 3/4 in 100 ft Flexible Nonmetallic Liquid-Tight Conduit

In this review of the Sealproof 3/4 in 100 ft Flexible Nonmetallic Liquid-Tight Conduit, the bottom line is straightforward: this is a practical, cost-effective conduit for installers who need corrosion- and abrasion-resistant protection in outdoor and harsh environments. The reviewer found it best for wiring runs that require flexibility, burial, or exposure to oil and sunlight, with the main reason to buy being its combination of durability and light weight compared with metallic alternatives.

Key Features

• Made in USA: Provides consistent material quality and construction for reliable performance on job sites.
• Liquid-tight construction: Resists water, oil and acids so conductors stay protected in wet or contaminated locations.
• Lightweight design: At about 50% lighter than metallic conduit, it reduces strain during handling and lowers installed cost.
• Smooth inner wall: Easier wire pulling with no burrs to damage conductors, which speeds installation.
• UV and direct burial rated: Suitable for outdoor use and burial without rapid degradation from sunlight or soil conditions.
• UL and CSA certified: Meets Underwriters Laboratories and Canadian Standards Association ratings for temperature and safety.

Who It's For

This conduit is well suited to electricians, HVAC technicians, marine installers and contractors who need a flexible, nonmetallic solution for outdoor lighting, pumps, motors and control wiring. It is especially useful where corrosion or metal shavings would damage metallic conduit, or where a lighter alternative makes runs and bends easier to manage.

Those who should look elsewhere include projects that require metallic conduit for grounding or where extremely high mechanical impact resistance is mandatory. If a conduit must serve as the grounding path, a metallic option or separate bonding conductor is preferable.

Pros & Cons

Pros

• Resists corrosion, oil and abrasion, making it reliable in harsh and outdoor environments.
• Lightweight and flexible for easier handling and faster installs compared with metallic conduit.
• Smooth, virgin PVC inner wall protects conductors and simplifies cable pulls.

Cons

• Nonmetallic construction means it is not intended to serve as a grounding conductor, so separate grounding may be required.

Specifications

Our Verdict

The Sealproof 3/4 in 100 ft flexible liquid-tight conduit is a solid choice for outdoor, buried and industrial wiring where corrosion resistance and ease of installation matter. Its UL and CSA certifications, smooth interior and lightweight construction give good value for contractors and DIYers who need reliable protection without the weight and sharp edges of metal conduit.

Frequently Asked Questions

Can this conduit be buried outdoors?
Yes. It is rated for direct burial and is sunlight resistant, making it appropriate for buried outdoor cable runs.

Will this conduit damage conductors during pulling?
No. The conduit is made from virgin PVC with a smooth inner wall and no sharp burrs, which reduces the chance of conductor damage.

Can it be used with metallic connectors?
Yes. It is designed to be used with Sealproof connectors and may also be used with Type B metallic or nonmetallic liquid-tight connectors.