UL-listed electrical nonmetallic tubing, flexible liquid tight conduit, HDPE innerduct and split tubing, with a full range of nonmetallic and zinc die-cast liquid tight connectors in trade sizes 1/4″ through 2″. Manufactured and stocked in Elizabeth, New Jersey, with registered UPCs on every part.
Sealproof® · raceway & fittings
Sealproof® Conduit and Connectors
Liquid-tight conduit, ENT, connectors and tubing for wet, oily and outdoor runs.
Non-metallic liquid-tight flexible conduit (LFNC-B) and the nylon and zinc connectors that terminate it, electrical nonmetallic tubing with its stubbies and adapters, flexible electrical tubing, HDPE innerduct, split tubing, cord grips and pre-assembled power whips.
Built forElectrical contractorsHVAC installersElectrical distributorsOEM & machine builders
Product families
Conduit & tubing
Liquid-tight conduit, ENT, flexible electrical tubing, innerduct and split tubing
Non-Metallic Liquid Tight Conduit19 part numbersSealproof non-metallic liquid-tight flexible conduit (LFNC-B, often called NMLT) is the gray PVC conduit used for…
ENT- Electrical Nonmetallic Tubing32 part numbersENT (electrical nonmetallic tubing), the blue corrugated "smurf tube", is a lightweight, hand-bendable raceway for branch…
Flexible Electrical Tubing8 part numbersFlexible electrical tubing (FET) is a corrugated, non-metallic raceway for protecting low-voltage and communications cable, sleeving…HDPE Innerduct8 part numbers
Polyethylene Split Tubing54 part numbersPolyethylene split tubing (split loom) wraps around existing cable bundles, harnesses and hose to protect them…Connectors & couplings
Nylon and zinc die-cast liquid-tight fittings
Non-Metallic Liquid Tight Connectors38 part numbers · 5 familiesNon-metallic liquid-tight connectors terminate LFNC-B conduit into boxes, enclosures and equipment with a watertight, corrosion-free joint.…
Zinc Die Cast Liquid Tight Connectors20 part numbers · 2 familiesZinc die-cast liquid-tight connectors are the metal fittings specified for liquid-tight conduit on machinery, HVAC equipment…Cord grips, whips & kits
Strain-relief cord connectors, pre-assembled power whips and line-set covers
Cord ConnectorsCord connectors (strain-relief cord grips) seal a flexible cord where it enters an enclosure, motor or…
Power Whips7 part numbersPower whips are pre-assembled lengths of liquid-tight conduit with connectors fitted at both ends and, where…
Line Set Cover Kit for Ductless Split Air ConditionersLine-set cover kits hide and protect the refrigerant lines, condensate drain and control wiring that run…More families in this line
AC (BX) ConnectorAC (BX) Connector.
Clamp Zinc Die Cast ConnectorClamp Zinc Die Cast Connector.
Clamp Zinc Die Cast ConnectorClamp Zinc Die Cast Connector.
90 Deg. Zinc Die Cast Squeeze Connectors90 Deg. Zinc Die Cast Squeeze Connectors.
240 Volt, Single Phase A/C Disconnect240 Volt, Single Phase A/C Disconnect.
Saddle Type ConnectorSaddle Type Connector.
Straight Zinc Die Cast Squeeze ConnectorsStraight Zinc Die Cast Squeeze Connectors.At a glance
- Listings
- UL Listed and CSA Certified — liquid-tight conduit E129973 and ENT E530821; cULus Listed — liquid-tight connectors and couplings E197675 and ENT fittings; flexible electrical tubing UL Recognized E129972
- Conduit
- Type B liquid-tight (LFNC-B), 3/8" to 4", sunlight- and oil-resistant, coils and reels
- Fittings
- Straight, 90°, multi-angle and screw-on nylon connectors; straight and 90° zinc die-cast; couplings; cord grips
- ENT
- FT4-rated corrugated tubing 1/2" to 2" with stubbies, couplings and snap-in / threaded adapters
- Also
- Orange HDPE innerduct for fiber, polyethylene split tubing in black and fire-retardant gray, A/C power whips
Downloads: Sealproof catalog, Rev. 2026 (PDF) · UL listings E129973 · E197675 · E530821 · E129972
How to specify a part
- Pick the familyOpen a family above — each page explains what it is for and lists every part number in a table.
- Check the partEvery part has its own page with size, finish, listing file, pack quantity, weight and a printable spec sheet.
- Ask for pricingSend the part numbers and quantities through Request a Quote, or call 1-800-394-3665. Sales answers from Elizabeth, NJ.
Other Superflex lines
Sealproof® Weatherproof Products
Weatherproof boxes, covers and lampholders that keep outdoor power safe and code-compliant.
Rollerflex® Industrial Hose
Spiral-reinforced PVC hose for suction, discharge, vacuum, food and beverage, made to order in Elizabeth, NJ.
Superflex Pool & Spa Hose
Kink-resistant hose for pool and spa plumbing, filter connections and vacuuming.
Pond Hose
Fish-safe black hose that will not kink, collapse or show under the water.
Marine and RV Hose
Sanitation, bilge, livewell and drain hose for boats and recreational vehicles.
Need pricing on Sealproof® Conduit and Connectors?
Send us the part numbers and quantities. Our sales team in Elizabeth, NJ will come back to you with pricing and availability.