Imperium CV300 Review

Specifications

"Not yet verified" means the manufacturer has not published the figure or we could not confirm it. We never fill a gap with a guess; our own measurements are added once a unit has been tested hands-on.

The short version

Who this unit is for

The Imperium CV300 is for a buyer who wants a plain, bagged, US-built power unit and is comfortable that the only documentation is a retailer listing. Imperium is the private label of Central Vacuum Stores, built by Lindsay Manufacturing of Ponca City, Oklahoma, which also makes VacuMaid. The listing rates it for 7,500 sq ft.

It is not for anyone who compares water lift or CFM across brands, because those figures do not exist for this unit anywhere we could find.

What the specs tell you

The listing claims 740 air watts from a 2-stage thru-flow motor. Air watts is the combined measure of airflow and suction that predicts carpet cleaning, and 740 would put this unit alongside VacuMaid’s SR14 at the top of our records. But water lift, the sealed-suction figure that tells you how the unit copes with long pipe runs and climbs, is not published, and neither is CFM or amperage. Without water lift we cannot say how it will behave on a far upstairs inlet.

The listing’s 58 dB would be among the quietest figures we have. Treat it the way you treat the air watt claim: plausible, unconfirmed.

Collection is bagged only, with a 6.25 gal disposable paper bag. Retailers list VacuMaid and AstroVac-type HEPA bags as compatible, which is consistent with a Lindsay-built unit, but no bag part number is in the record. The trade-off is the usual one: clean changes and a protected motor against a consumable and no bagless option. The listing’s filter description is inconsistent, calling the filter type a cartridge while describing a paper bag.

Also unpublished: weight. Dimensions are given as 25.75 in high by 12.875 in deep, with the listing’s table repeating 25.38 in for two axes.

Fit and compatibility

Standard 2-inch pipe and a wall bracket mount. The record lists low-voltage and direct-connect electric inlet compatibility and plug-in 120V power, but flags all three as standard-residential assumptions rather than anything a source states. A utility inlet on the unit is listed as included.

Exhaust venting guidance is not stated; the record treats outside venting as optional. There is no muffler in the box, so if you vent indoors, budget for one.

What’s in the box, and what you still need

In the box, per the listing: the power unit with utility inlet, one paper bag and mounting hardware.

Not included: hose and attachments, pipe, fittings and inlets. Add bags once you confirm the part number, and an exhaust cap or muffler depending on how you vent.

Warranty and support

The listing claims a 10-year motor warranty. Imperium’s limited warranty terms, as recorded, are 5, 7 or 10 years depending on model, for the original owner, starting at installation. It is void if the warranty registration card is not returned within 30 days of purchase. Claims go through the Imperium dealer or the authorized distributor-installer who sold the unit, within 45 days of discovering a defect. Commercial use limits coverage to 90 days. Tampering with the motor blower or vacuuming drywall or cement dust voids it.

Marketplace purchases are not addressed. Because claims route through the selling dealer, a marketplace seller’s willingness to handle a claim is the practical question. Parts support exists through Central Vacuum Stores’ Imperium parts pages.

Living with it

Bag changes are the whole maintenance routine. Confirm the bag part number with the seller and keep a supply; the listing’s compatibility note points to VacuMaid and AstroVac-type HEPA bags. The utility inlet on the unit lets you plug a hose in at the power unit for garage work.

If 58 dB holds up it is a quiet unit, but with no venting guidance we would still mount it on a garage or exterior utility wall.

What we’d verify before buying

• Water lift: not published.
• CFM: not published.
• Amps: not published.
• Weight: not published.
• Inlet types and plug-in power: assumed, not stated.
• Exhaust venting guidance: not stated.
• Bag part number and HEPA status: listed as compatible with VacuMaid/AstroVac-type bags; filter type field conflicts.
• Dimensions: listing table is internally inconsistent.
• Whether the 10-year motor warranty and 30-day registration rule apply to your purchase.

What's in the box, and what you still need

Most power units ship without a hose or powerhead. Our attachments guide explains which hose fits your inlets.