Steamfast SF-370 Canister Steam Cleaner with 15 Accessories Review (2026)

Tank size and steam runtime

Steamfast's own listing describes the SF-370 as having an extra-large capacity tank that provides up to 45 minutes of continuous steam once heated, putting its runtime in the same range as the McCulloch canister steamers on this list despite a smaller accessory count. That 48-ounce tank size means most single cleaning sessions, whether it is a full car interior or several rooms of flooring, can be finished on one fill without stopping partway through to reheat the unit. Steamfast markets the unit as an all-natural, chemical-free way to sanitize surfaces using pressurized steam alone rather than cleaning chemicals or disinfecting sprays, which some households and car owners prefer for fabric seats.

The 15 included accessories

The SF-370 ships with 15 accessories according to Steamfast, including mop pad attachments with two microfiber pads suited to sealed hardwood, tile and laminate floors, along with additional tools such as a triangle brush, nylon and brass brushes, a squeegee, scrub pads, an extension wand and a funnel. That accessory count is fewer than the larger McCulloch canister kits on this list, but it still covers the core jobs most buyers want from a steam cleaner, from mopping hard floors to detailing car interiors, grout lines and kitchen appliances without needing to buy separate attachments right away or hunt down extra third-party parts.

Portability and everyday use

Steamfast built the SF-370 with wheels, a carrying handle and an integrated cord wrap so the canister can be rolled between rooms or out to a driveway for car detailing rather than carried by hand the whole time. The company markets it for a wide range of surfaces including couch fabric, bathroom and kitchen tile, grout, carpet, sealed hardwood, laminate, appliances, grills and cars, positioning it as a general-purpose household steamer that also happens to work well on vehicles rather than a car-specific tool built only for detailing. That versatility can make it easier to justify the purchase for a household that only details a car occasionally but cleans floors and furniture year round.

Where it fits and its current availability

In the site's own steam cleaner comparison, the SF-370 sits just behind the McCulloch MC1275 at the same runtime but with three fewer accessories, and ahead of the compact Steamfast SF-295 multi-purpose steamer that trades tank size for portability. It is worth noting that Steamfast's own product page currently lists the SF-370 as discontinued, meaning new stock may be limited to remaining retailer inventory rather than being restocked directly from the manufacturer going forward, which is worth checking with a retailer before counting on future replacement parts or accessory availability down the road.

Who should buy this steamer

This unit suits buyers who want a capable, mid-range canister steamer for regular household and car cleaning without paying for the largest tank or the most accessories available. The 45-minute runtime and 15-piece tool set cover most jobs a home user or car detailer would want in a single steamer, from mopping a kitchen floor to steaming grime out of a car's carpet and seats. Because the model is now discontinued by the manufacturer, buyers who want long-term parts availability and manufacturer support may be better served by a currently produced model like the McCulloch MC1275 or MC1385 instead.

Frequently asked questions