How SpecsMatch verifies fits.
SpecsMatch publishes compatibility pages only when the fit can be tied to a source trail. The method is built for transactional searches where a wrong substitution wastes money or damages equipment.
OEM sources first
Manufacturer manuals, manufacturer bag/filter charts, and official product pages are the preferred source layer. Retailer pages are used only as cross-checks or regional suffix evidence unless no OEM source is available.
Fit claims stay narrow
A bag or filter family is not treated as interchangeable because the name looks similar. The exact vacuum model, part number, collar or filter position, and source wording have to support the claim.
Generic equivalents are separate claims
Generic and third-party labels are stored separately from OEM bag codes. A generic listing can be compatible, uncertain, or rejected without changing the OEM fit verdict.
Dates and confidence labels are required
Published compatibility records carry a last-verified date and confidence label so readers can distinguish manual-derived, retailer-derived, and source-confirmed data.