31288-13: 13" Round White Glass Fixture, Non-Dimmable, ENERGY STAR Exempt

Galaxy Lighting 31288-13: a 13 inch round white replacement glass, 1-7/8 inches deep. This is the diffuser from a flush-mount ceiling fixture, sold as a part on its own - the piece you order when a ladder, a mop handle or a moving crew has taken out the glass and the fixture above it still works perfectly.

Why a replacement glass is worth ordering by model number

Round white ceiling glass looks generic and is not. Galaxy alone catalogues dozens of them, and the differences that matter are invisible from the floor: the diameter of the fitter opening, the depth of the lip, whether it sits on three thumbscrews or threads onto a centre finial, and how deep the bowl runs. A shade that is a half inch off in any of those will not seat, and a shade that seats badly will rattle or fall. The model number is the only reliable way to get the same part back.

Specifications

Best for: replacing the diffuser on an existing Galaxy Lighting flush-mount ceiling fixture without having to change the whole fixture.

Common questions

Will this glass fit my 13 inch ceiling fixture?
Only if the fixture is the Galaxy one it was made for. Galaxy gives a 13 inch diameter and a 1-7/8 inch height, but the fitter opening and the screw pattern vary between fixtures that share the same face diameter.

Does it come with a bulb, a mounting ring or screws?
No. Galaxy lists Lamp included as Not Included and records no other hardware for this part number. You are buying the glass shade on its own.

Is this piece ENERGY STAR rated?
Galaxy's record lists ENERGY STAR: No for this part. That is normal for a replacement glass - the rating belongs to a complete fixture with its lamp and driver, not to a diffuser.

Can I buy a single piece rather than a case?
Yes. Galaxy packs these 30 to a master carton at about 1.25 pounds each, but we break cases and ship single pieces because that is how replacement glass gets bought.