Arlington Weatherproof & In-Use Covers

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About this category

Arlington weatherproof in-use covers keep outdoor receptacles protected from rain and weather while a cord stays plugged in, including the Arlington IN BOX while-in-use cover series. Maple Electric Supply is an authorized Canadian Arlington Industries dealer, so stock is genuine and carries the full manufacturer warranty, priced in CAD with no cross-border duty. Shipping is fast across Ontario and Quebec, and counter pickup at our Vaughan warehouse is available Monday to Friday. Install to your local requirements and the Canadian Electrical Code.

Arlington IN BOX weatherproof in-use covers protect outdoor GFCI, duplex, and decorator receptacles while a plug is inserted, meeting CEC/NEC requirements for wet-location outlets in use. Stocked in Canada by Maple Electric — priced in CAD, ships Canada-wide, will-call pickup available.
Common questions
What is the difference between an in-use cover and a standard weatherproof cover?
A standard weatherproof cover only seals when closed and empty. An in-use cover keeps the receptacle sealed while a cord is plugged in — the CEC requires this on outdoor receptacles that will remain in use in wet locations.
Do Arlington IN BOX covers work with GFCI outlets?
Yes. The IN BOX line fits standard duplex, decorator, and GFCI receptacles in standard 1- and 2-gang boxes. Confirm the specific model against your box depth and receptacle style, and follow CEC rules and your licensed electrician for wet-location installs.
What box pairs with an IN BOX cover?
Arlington sells matched non-metallic weatherproof and siding boxes for new work and retrofit. Cover-only kits fit standard 1- or 2-gang metal or PVC boxes at the correct depth — check the model spec sheet for the exact match.

Maple Electric Supply ships electrical materials across Canada from our Vaughan, Ontario warehouse. Free shipping on orders over $150 in Ontario and Quebec, 10% off orders everywhere else in Canada, and counter pickup in Vaughan. Lighting, wire, breakers, controls, heating, EV charging and tools for electricians, builders and facility teams.