Carlon E958D Gray PVC Conduit ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2.04
Carlon Gray PVC End Cap for Electrical Conduit Protection

Carlon E958D Gray PVC Conduit End Cap, 1/2" Trade Size

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Model: E958F

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

$2.04
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Carlon E958D Gray PVC Conduit End Cap, 1/2" Trade Size

The Carlon E958D is a 1/2" gray PVC end cap engineered to provide a clean, secure termination for gray PVC electrical conduit runs. As part of the broader Carlon E958 Series — available in trade sizes from 1/2" through 6" (E958D through E958R) — this specific 1/2" cap protects open conduit ends from moisture, debris, and physical damage during construction, storage, and in-service installations. Manufactured by Carlon, a leading name in PVC conduit fittings, the E958D is a standard choice for electricians, contractors, and MRO procurement across residential, commercial, and industrial projects where reliable conduit protection is required. Its gray PVC construction keeps material handling simple while matching the color and profile of standard Schedule 40 and Schedule 80 gray PVC conduit systems, so installers can maintain a consistent, professional appearance across every visible run. Whether capping stubbed-out conduit during rough-in or sealing spare runs for future use, the E958D delivers a tight, dependable fit that helps keep the entire conduit system clean and code-compliant.

Key Features

  • Trade Size: 1/2" trade size, sized to match standard 1/2" gray PVC electrical conduit runs.
  • Durable Construction: Gray PVC construction is corrosion-resistant, lightweight, and fully compatible with standard gray PVC electrical conduit systems.
  • Function: Seals open conduit ends to block moisture ingress, insects, and construction debris from entering the conduit run.
  • Color/Finish: Gray finish matches standard Schedule 40 and Schedule 80 gray PVC conduit for a consistent, professional appearance.
  • Series Consistency: Part of the Carlon E958 Series, which spans 1/2" through 6" (E958D through E958R) so matching caps are available for larger conduit sizes on the same job.
  • Brand Reliability: Carlon, part of the Lamson & Sessions / Thomas & Betts family, is widely stocked and specified across the electrical trade.

Technical Specifications

  • Trade Size: 1/2"
  • Product Material: Gray PVC
  • Product Color: Gray
  • Product Type: Conduit End Cap

Typical Applications

  • Capping unused 1/2" conduit stubs during rough-in and construction phases
  • Protecting conduit ends in outdoor, underground, and exposed installations
  • Sealing conduit during storage and transit to prevent contamination
  • Terminating conduit runs in residential, commercial, and industrial electrical systems
  • MRO and maintenance stock for property managers and facility teams

Ordering Information

The Carlon E958D corresponds to the 1/2" size within the E958 Series lineup. Other sizes in the series include E958E (3/4"), E958F (1"), E958G (1-1/4"), E958H (1-1/2"), E958J (2"), E958K (2-1/2"), E958L (3"), E958N (4"), E958P (5"), and E958R (6"). Confirm the E958D model number when ordering to ensure a proper fit on 1/2" gray PVC conduit, and stock adjacent sizes from the same series if a job calls for multiple conduit diameters.

Why Carlon?

Carlon's gray PVC construction and consistent sizing across the E958 series make the E958D a dependable, code-compliant choice for terminating 1/2" conduit runs. As part of the Lamson & Sessions / Thomas & Betts family, Carlon is a widely stocked and specified brand for professional electrical work, giving contractors and facility teams confidence in fit and material quality on every job.

Manufacturer Resources

Product Specs

Brand Label:
Carlon
Department:
Electrical
Effective Date:
20080116
Product Color:
Gray
Product Type:
Conduit Fittings & End Caps
Product Group:
Conduit & Raceway
Product Subgroup:
PVC Conduit & Fittings

Carlon E958F – Frequently Asked Questions

1) Which Carlon E958 end cap do I order for 1-1/4 inch PVC conduit?
Trade size is the whole ordering decision on the E958 series, and each size has its own Carlon part number. For 1-1/4 inch conduit you want E958G. The rest of the run: E958D (1/2"), E958E (3/4"), E958F (1"), E958H (1-1/2"), E958J (2"), E958K (2-1/2"), E958L (3"), E958N (4"), E958P (5"), E958R (6"). Order by the conduit's trade size, not by measuring the pipe OD.
2) Will a Carlon E958 end cap fit Schedule 80 PVC conduit, or only Schedule 40?
Both. Schedule 40 and Schedule 80 gray PVC conduit share the same outside diameter at a given trade size, so the E958 cap that matches your trade size goes over either one. The wall thickness difference is on the inside of the pipe and doesn't change the socket fit.
3) Can I use a PVC conduit end cap on a stubbed-up conduit that I'll open back up later?
That's the common use for the E958 series. Capping stubs during rough-in keeps moisture, insects, and construction debris out of the raceway until you come back to pull wire. Because it's a PVC socket fitting, you decide whether to solvent weld it or leave it friction-fit: dry-fit it if the stub gets reopened, cement it if the run is being permanently terminated.
4) Will a Carlon E958 gray PVC cap work on white plumbing PVC or on orange electrical conduit?
No on both counts. The E958 is a gray PVC fitting sized for gray electrical conduit, and gray electrical conduit, white Schedule 40 plumbing pipe, and orange DB duct are not the same outside diameters at a given nominal size. Cap plumbing pipe with a plumbing PVC cap, and match duct with fittings made for that duct system.
5) Is a PVC end cap the right thing for a conduit end I'm pulling wire out of, or do I need a bushing or bell end?
An end cap closes the conduit. If a conductor is coming out of that opening, you want a different fitting: a bell end or terminal adapter with a bushing to give the wire a rounded bearing surface. The E958 is for openings that stay closed, unused stubs, spare raceways, and conduit ends being protected during construction or storage.
6) Can Carlon E958 caps be used on buried or outdoor conduit?
Yes. PVC is corrosion resistant, which is why these get used on outdoor, underground, and exposed conduit ends. Solvent weld the cap if it's going underground or staying outside long term, since a friction fit will let water past over time.
7) What size range do Carlon E958 PVC conduit end caps cover for a large commercial job?
Eleven trade sizes, 1/2 inch through 6 inch, so one series covers branch-circuit raceway up to feeder and service-size conduit. For a facility standardizing MRO stock, that means a single Carlon part family across the whole building rather than mixing brands by size.
8) Do I need anything else to install a Carlon E958 conduit end cap?
Nothing, if you're friction-fitting it over a stub. For a permanent, weather-tight termination you'll need PVC conduit cement (and primer where your inspector or the local code requires it). The cap ships as the fitting only.
9) Is the Carlon E958 the same as a Thomas & Betts conduit end cap?
Same product line. Carlon is part of the Lamson & Sessions / Thomas & Betts family, so an E958 ordered under either name is the same gray PVC end cap series. If a spec sheet or an existing job calls out a T&B PVC cap by the E958 number, this is it.
How fast can I get the Carlon E958F 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 Carlon E958F come with a warranty?
Absolutely. The Carlon E958F 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 Carlon E958F?
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
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