Conduits & Fittings

Flexible electrical conduit and conduit fittings provide critical protection for electrical wiring in residential, commercial, and industrial environments. Whether you’re routing cables through walls, protecting outdoor wiring from the elements, or managing wiring in HVAC and industrial equipment, the right conduit system keeps your installation safe, compliant, and long-lasting.
TIESELX conduit products are designed for professionals and dedicated DIYers who need reliable, code-friendly wire protection. Our liquid-tight flexible non-metallic conduit (FNMC) combines the flexibility of plastic with genuine weatherproof performance — resisting water, oil, corrosion, UV radiation, acids, and physical abrasion even in demanding outdoor and industrial applications.
What Are Electrical Conduits?
An electrical conduit is a tube or channel used to route and protect insulated electrical wiring. Unlike surface-mounted cable raceways or cable sleeves designed purely for organization, electrical conduit provides a mechanical protective shell that meets NEC (National Electrical Code) requirements for certain installation types. Conduit is required or preferred for:
•  Exposed outdoor wiring
•  Underground direct-burial installations
•  Connections to HVAC equipment, motors, and pumps
•  Areas subject to moisture, oil, or physical damage
•  Commercial and industrial electrical work
Flexible vs. Rigid Conduit — Which Do You Need?
Rigid conduit (EMT, IMC, or PVC Schedule 40/80) is used for straight runs where the path is fixed. Flexible electrical conduit is the preferred choice when you need to navigate tight bends, connect to vibrating equipment such as motors and compressors, make final connections to appliances, or route wiring in locations where rigid conduit would be impractical to install.
Liquid-tight flexible non-metallic conduit — the type featured in our range — adds a critical layer of moisture protection, making it suitable for outdoor, wet, and corrosive environments where standard flex conduit would fail over time.
Conduit Fittings Explained
Conduit fittings are the connectors that join conduit sections to each other, to junction boxes, or to electrical equipment. The correct fitting ensures a weatherproof, mechanically secure connection. Our kits include two types of fittings:
Straight fittings (180°): Used where the conduit enters a box or panel straight on. No tools required — simply push the conduit onto the ferrule and tighten the dome sealing nut by hand.
90-degree angle fittings: Allow the conduit to make a right-angle turn into a box or panel. Essential for tight spaces where the conduit approaches from the side.
Common Applications
Flexible liquid-tight conduit and fittings are used across a wide range of applications, including:
•  HVAC systems — connecting air handlers, condensers, and heat pumps
•  Machine tools and industrial equipment — motor and control wiring
•  Outdoor lighting and signage — UV and weather-resistant protection
•  Solar panel installations — protecting DC and AC wiring runs
•  Pumps and irrigation systems — waterproof connections in wet environments
•  Marine and coastal installations — resists salt air and humidity
•  Refrigeration and freezer equipment — stays flexible in extreme cold
Why Choose TIESELX Conduit Products?
Our conduit kits are designed as complete solutions — every kit includes the conduit and the fittings you need to complete the job, with no separate purchasing required. The liquid-tight design ensures waterproof joints when fittings are correctly tightened. Conduit can be cut to length with a utility knife or PVC cutter, making installation fast even for one person working alone.

Frequently Asked Questions

Can I bury liquid-tight flexible conduit underground?
Yes. FNMC liquid-tight conduit is rated for direct burial applications. Use straight fittings only for buried connections to make future wire pulling easier. Check local electrical codes for minimum burial depth requirements in your area.

Do I need tools to install the conduit fittings?
No tools are required. Push the conduit firmly onto the ferrule inside the fitting, then hand-tighten the dome sealing nut until snug. The compression seal creates a waterproof connection without any additional tools or sealant.

What wire gauge can I run through 1/2-inch conduit?
1/2-inch conduit (ID: 0.5″, OD: 0.83″) can accommodate several conductors depending on wire gauge and fill percentage. As a general guide for typical residential wiring, it will handle up to three 12 AWG or three 14 AWG conductors. Always consult NEC fill tables and your local electrical code for exact requirements.

Is flexible non-metallic conduit the same as flexible metallic conduit (FMC)?
No. Flexible non-metallic conduit (FNMC) is made from PVC plastic with no metal components. It is lighter, corrosion-proof, and lower cost than flexible metallic conduit (FMC) or liquidtight flexible metallic conduit (LFMC). However, FMC provides an additional grounding path through the metal jacket, which FNMC does not. For most residential HVAC, pump, and outdoor lighting connections, FNMC is appropriate — confirm with local code requirements for your specific application.

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