Napoleon
Napoleon Reducer Kit, 5"/8" to 4"/7" | A4758AK
Napoleon Reducer Kit, 5"/8" to 4"/7" | A4758AK


The Napoleon A4758AK is a direct vent reducer kit that converts 5 inch / 8 inch venting to 4 inch / 7 inch at the appliance. Napoleon lists it in the venting section of its installation manuals, such as the Ascent Linear Premium series, for running 5"/8" pipe to a fireplace with a 4"/7" collar. Napoleon publishes its own adaptor kit instructions for it.
Details
| Part number | A4758AK |
|---|---|
| Type | Direct vent reducer (adaptor) kit |
| Converts | 5" exhaust / 8" intake venting to 4" / 7" at the appliance |
| Listed in | Ascent Linear Premium series installation manual (venting section) |
| Instructions | Napoleon W415-1488, (A)4758AK adaptor kit instructions |
| Shipping weight | About 6.9 lbs, packed |
| Brand | Napoleon |
Questions people ask us
What does the reducer do?
It joins 5"/8" direct vent pipe to an appliance with a 4"/7" vent collar, so the larger pipe can be run where the manual allows it.
Will it work with my fireplace?
Only if your fireplace manual lists A4758AK in its venting section. Napoleon lists it for the Ascent Linear Premium series. Send us your model and we will check.
Do I still need vent pipe and a terminal?
Yes. The reducer is one fitting in the vent run. You still need the pipe, terminal and any other parts your manual calls for.
Goes with this
Manuals and warranty
Warranty terms come from Napoleon and depend on the product. Read the manual and the warranty for your model before you order.
Our warranty libraryยท Ascent Linear Premium installation manual, venting section (PDF)Ask us before you order
