Sealproof® · outdoor electrical
Sealproof® Weatherproof Products
Weatherproof boxes, covers and lampholders that keep outdoor power safe and code-compliant.
Die-cast metal and impact-resistant polycarbonate outlet boxes, extra-duty while-in-use covers, flat and blank covers, extension rings, conduit bodies and lampholders — with patented multi-configuration mounting so one cover fits the common device layouts.
Built forElectrical contractorsElectrical distributorsOEMs & panel shopsMarine & dock builders
Product families
Outlet boxes
Die-cast and polycarbonate boxes, extensions and fan braces
1 Gang Outlet Boxes23 part numbers · 2 familiesSealproof one-gang weatherproof outlet boxes are the die-cast aluminum boxes electricians reach for when a receptacle,…
2 Gang Outlet Boxes20 part numbers · 2 familiesTwo-gang Sealproof outlet boxes give you room for two devices, a GFCI plus a switch, or…
3 Gang Outlet Boxes3 part numbersThree-gang Sealproof weatherproof boxes house three devices behind a single cover: typical for pool equipment pads,…
Round Outlet Boxes11 part numbersRound weatherproof outlet boxes are the base for outdoor lampholders, floodlights, motion sensors and wall-mounted fixtures.…
Plastic Outlet Boxes6 part numbersSealproof plastic outlet boxes are molded from UV-stabilised, impact-resistant polycarbonate, so they will not corrode near…
Outlet Box Extensions10 part numbersOutlet box extensions add depth to an existing weatherproof box when a GFCI, timer or smart…
Fan Brace2 part numbersThe Sealproof fan brace is a listed support for ceiling fans and heavy fixtures on porches,…While-in-use covers
Extra-duty covers that keep a plugged-in cord protected
Extra Duty While In Use Covers17 part numbers · 3 familiesExtra-duty while-in-use covers keep an outdoor receptacle protected while a cord is plugged in, which the…
Extra Duty Metal While In Use Covers3 part numbersExtra-duty metal while-in-use covers combine the code-required Extra Duty rating with a die-cast aluminum body for…Flat & blank covers
Weatherproof device and blank covers in metal and plastic
Metal Covers27 part numbers · 4 familiesMetal flat covers close a weatherproof box around a switch, receptacle or blank opening when the…
Plastic Covers20 part numbers · 3 familiesPlastic flat covers are the corrosion-free alternative to metal for switches, blank openings and damp-location receptacles.…
Extra Duty Shallow Plastic Covers3 part numbersExtra-duty shallow plastic covers give while-in-use protection with a lower profile for tight spots: behind grills,…Conduit bodies
Threaded LB, LL, LR, LC, LT and SLB bodies with covers and gaskets
Lampholders & closure plugs
Weatherproof lampholders and threaded plugs
At a glance
- Listings
- cULus Listed — boxes, covers and rings file E362604; extra-duty covers E362580; lampholders E362597; conduit bodies E197675 and E362604
- Code
- Extra-duty in-use covers meet NEC 406.9(B) for wet-location receptacles
- Materials
- Die-cast metal with powder-coat finish, or impact-resistant polycarbonate (UL marine designation)
- Finishes
- Gray, white, bronze and black across boxes and covers
- Sizes
- 1-, 2- and 3-gang rectangular, round; hubs 1/2" to 1"; conduit bodies 1/2" to 4"
Downloads: Sealproof catalog, Rev. 2026 (PDF) · UL listings E362604 · E362580 · E362597 · E197675
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® Conduit and Connectors
Liquid-tight conduit, ENT, connectors and tubing for wet, oily and outdoor runs.
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® Weatherproof Products?
Send us the part numbers and quantities. Our sales team in Elizabeth, NJ will come back to you with pricing and availability.