SEPCO S1016RT Raintight EMT Co...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1.99
SEPCO S1016RT Raintight EMT Compression Coupling, Zinc-Plated Steel

SEPCO S1016RT Raintight EMT Compression Coupling, Zinc-Plated Steel

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Model: S1016RT

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1.99
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SEPCO S1016RT Raintight EMT Compression Coupling, Zinc-Plated Steel

The SEPCO S1016RT is a raintight EMT compression coupling engineered to join sections of Electrical Metallic Tubing (EMT) with a secure, weatherproof connection. Built from zinc-plated steel and offered in trade sizes ranging from 1/2-Inch through 4-Inch, this compression-style fitting is designed to withstand outdoor and wet-location exposure while maintaining a tight mechanical and electrical bond between conduit runs. The compression design allows for straightforward field installation without threading or set screws, making the S1016RT series a practical choice for new construction and retrofit EMT conduit systems wherever a raintight seal is required, across the full 1/2-Inch to 4-Inch trade size range electrical contractors need for a given raceway run.

Key Features

  • Trade Size Range: Offered in sizes from 1/2-Inch through 4-Inch to match a wide range of EMT conduit runs on a single job site.
  • Compression Connection: Uses a compression-style coupling that clamps securely onto EMT conduit, creating a tight mechanical joint without threading or set screws.
  • Durable Construction: Made from zinc-plated steel for added corrosion resistance and long-term durability in demanding electrical environments.
  • Raintight Rating: Engineered to maintain a raintight seal at the coupling joint, helping protect the conduit run and enclosed conductors from moisture intrusion in outdoor or wet-location installations.
  • EMT Coupling Function: Joins two lengths of EMT conduit in a straight run, allowing electrical contractors to extend conduit runs while preserving a continuous, code-compliant raceway.
  • Field-Installable Design: The compression mechanism supports fast, reliable field assembly, reducing installation time on commercial and industrial EMT conduit runs.
  • Corrosion-Resistant Finish: The zinc-plated finish helps the coupling resist rust and corrosion when exposed to outdoor or damp job-site conditions.

Certifications & Compliance

  • Raintight Design Suitable for Wet and Outdoor Locations

Technical Specifications

  • Trade Size: 1/2-Inch - 4-Inch

Typical Applications

  • EMT Conduit Extension and Repair
  • Outdoor and Wet-Location Electrical Installations
  • Commercial and Industrial Wiring Systems
  • Renovation and New Construction Projects
  • Raceway Systems Requiring a Raintight Seal

Why SEPCO?

SEPCO builds the S1016RT series from zinc-plated steel to deliver a corrosion-resistant, raintight compression joint that electrical contractors can depend on across trade sizes from 1/2-Inch through 4-Inch in outdoor and wet-location EMT installations. Choosing SEPCO fittings for these connections helps ensure a reliable, code-compliant raceway system from rough-in through final inspection, regardless of which coupling size in the S1016RT range the job requires.

Manufacturer Resources

SEPCO Product Catalog

Product Specs

list_batch:
SEP-20260911
Product Type:
Conduit Coupling
Connection Type:
Compression
Product Finish:
Zinc-Plated
Department:
Electrical
Product Group:
Conduit & Raceway
Product Subgroup:
Conduit Fittings
Product Material:
Zinc-Plated Steel

SEPCO S1016RT – Frequently Asked Questions

1) Can I use a SEPCO S1016RT coupling on an outdoor EMT run exposed to rain?
That is what the S1016RT series is built for. It is a raintight EMT compression coupling intended for wet-location and outdoor runs, holding a raintight seal at the joint so moisture stays out of the raceway and off the conductors. The body is zinc-plated steel for corrosion resistance on exposed runs.
2) What EMT trade sizes does the SEPCO S1016RT raintight coupling come in?
Eight trade sizes cover a full job: 1/2-inch (S1016RT), 3/4-inch (S1017RT), 1-inch (S1018RT), 1-1/4-inch (S1019RT), 2-inch (S1021RT), 2-1/2-inch (S1021DRT), 3-inch (S1021ERT) and 4-inch (S1021FRT). Note there is no 1-1/2-inch in the set, so a 1-1/2-inch EMT splice needs a different fitting.
3) Do I need to thread the conduit or tighten a set screw to install this EMT coupling?
Neither. The S1016RT is a compression fitting: you push the cut EMT ends in and tighten the compression nuts, which clamp the tubing and form the joint. No threading, no set screws. EMT is not threaded in the field anyway, so this installs with a wrench and nothing else.
4) Will a SEPCO S1016RT coupling work on rigid conduit or only EMT?
EMT only. The S1016RT is a compression coupling sized to Electrical Metallic Tubing outside diameters and joins two lengths of EMT in a straight run. For rigid steel conduit, a rigid coupling such as the Ocal CPL Series (PVC-coated for corrosive environments) is the right family of fitting instead.
5) What should I use instead of the SEPCO S1016RT coupling if the run is rigid steel conduit rather than EMT?
The SEPCO S1016RT is a compression coupling made to join Electrical Metallic Tubing, so it is not the fitting for a rigid steel run. For rigid steel conduit, the Ocal CPL series rigid steel conduit coupling is the corresponding part, and it carries a PVC-coated gray finish rather than the zinc-plated steel of the SEPCO. Match the coupling to the raceway type on the drawing: EMT compression for EMT, rigid coupling for rigid.
6) Is the nVent CADDY ERC twist coupling an equivalent to the SEPCO S1016RT?
They are not interchangeable choices for the same requirement. The SEPCO S1016RT uses a compression connection and is built as a raintight joint for outdoor and wet-location EMT runs. The nVent CADDY ERC 2G9S10WB is a twist coupling for metallic conduit supplied in packs of 100, which suits high-volume dry interior work where a raintight joint is not called for. If the specification asks for a weatherproof coupling, stay with the S1016RT.
7) Set screw or compression coupling for EMT, which should I use?
Set screw couplings are for dry indoor locations only. Where the raceway is outdoors, on a roof, or in any wet or damp location, you need a raintight compression coupling like the S1016RT, because the compression seal is what keeps water out of the joint. Indoors in dry areas either style works mechanically, but the compression fitting is what passes inspection on a wet-location run.
8) What else could I use to splice metallic conduit besides a SEPCO compression coupling?
For a raintight splice in EMT, the S1016RT compression coupling is the direct answer. If your run is indoor and dry and you are joining a lot of conduit quickly, the nVent CADDY ERC 2G9S10WB twist coupling for metallic conduit comes in packs of 100. For PVC-coated rigid runs in corrosive areas, look at the Ocal CPL Series coupling. Those two are different conduit systems or different location ratings, not drop-in substitutes for a raintight EMT joint.
9) Can I use this coupling to repair a damaged section in an existing EMT run?
Yes, and that is a common use. Cut out the damaged length, slide the compression coupling onto each remaining EMT end and tighten. Because nothing has to be threaded or rotated, you can make up the joint in place on an existing raceway, which is why it suits retrofit work as well as new construction. Match the coupling to the trade size of the conduit you are cutting into.
10) Does the SEPCO coupling maintain ground continuity between EMT sections?
The compression joint is designed as a tight mechanical and electrical bond between conduit runs, so the steel coupling keeps the raceway continuous between the two lengths of EMT. The body is steel with a zinc plate, not a nonmetallic fitting.
11) For a corrosive outdoor environment, how does the SEPCO S1016RT compare with the Ocal CPL coupling?
The SEPCO S1016RT is zinc-plated steel, a corrosion-resistant finish intended for damp and outdoor exposure on EMT runs. The Ocal CPL series coupling is PVC-coated and made for rigid steel conduit, which is the usual approach where a coated raceway system is specified end to end. The deciding factor is the conduit already in the job: the S1016RT joins EMT, the CPL joins rigid steel.
12) I need a large-diameter EMT coupling, 3-inch or 4-inch. Do the alternatives cover that?
The SEPCO S1016RT series spans trade sizes 1/2-inch through 4-inch, with S1021ERT at 3-inch and S1021FRT at 4-inch, so one series covers a full raceway run of mixed sizes. The nVent CADDY ERC 2G9S10WB twist coupling is a single bulk item packed 100 to a carton, which fits repeat small-conduit work rather than a mix of large trade sizes.
13) Is the zinc-plated finish on these couplings good enough for an exterior building run?
Zinc plating over steel is the standard corrosion-resistant finish for exposed EMT fittings, and that is what the S1016RT carries. It holds up in outdoor and damp job-site conditions. Where the environment is chemically aggressive rather than just wet, a PVC-coated system such as the Ocal CPL Series rigid coupling is the heavier-duty route.
How fast can I get the SEPCO S1016RT delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the SEPCO S1016RT come with a warranty?
Absolutely. The SEPCO S1016RT is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the SEPCO S1016RT?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the SEPCO S1016RT from ZenSupply?
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