Alrens 1 1/4" Shop Vacuum Cleaner Attachments Brushes for Vac Accessories 1/4 inch 1 3/8 inch, Set of 8

Overview

A good set of vacuum attachments can stretch a shop vac or household canister far beyond basic floor duty. I tested the Alrens 1-1/4-inch shop vac attachment kit as a compact, inexpensive way to add dusting, upholstery, and deep crevice reach to a couple of vacuums in my shop and around the house. It’s a no-frills, polypropylene set built around common 32 mm (1-1/4 inch) and 35 mm (1-3/8 inch) sizes, with an included adapter to bridge the two. On paper it promises broad compatibility and a tool for nearly every tight spot; in practice, it’s a value-minded kit that works well as long as you manage expectations on fitment and brush quality.

What’s in the kit

The set includes eight pieces:
- 35 mm (1-3/8 inch) to 32 mm (1-1/4 inch) adapter
- Sofa dusting brush
- Horsehair dust brush
- 2-in-1 crevice tool
- Standard crevice tool
- Upholstery tool
- Flexible crevice tool (long, bendable)
- Dust brush with tube section and extra sleeve adapters (black and blue)

Coverage-wise, this is a thoughtful spread. You get two distinct crevice tools including a flexible one for reach, two different dusting heads, and a basic upholstery nozzle. The flexible crevice attachment is the standout: it snakes into spots rigid tools can’t touch.

Setup and fit

Compatibility is the first thing I checked. The kit is designed for:
- 32 mm (1-1/4 inch) outside diameter wand/tube connections
- 35 mm (1-3/8 inch) inside diameter hose ends, using the included adapter

On a small 3-gallon shop vac with a 1.25-inch hose, most tools pushed on firmly and stayed put under normal use. On a mid-size shop vac with a tapered end, a couple of attachments were slightly loose until I added a wrap of blue painter’s tape to the hose end (a quick, reversible fix). On a 35 mm European-style canister, the included adapter did its job and everything seated as expected.

There’s no locking mechanism—everything is friction fit—so tolerances of your hose end matter. If you want a more secure connection:
- Add one or two layers of painter’s tape on a slightly undersized hose end
- Use a thin rubber O-ring around the male end for grip
- Keep the tool aligned and seated straight; a slight twist helps it bite

In use: where each attachment shines

• Flexible crevice tool: This is the hero for car interiors. It fed easily under seat rails, along door pockets, and into the gap between center console and seat. In the shop, it reached behind the bandsaw column and along baseboards behind cabinets without moving heavy equipment. Because it’s narrow, it focuses suction; grab a more powerful vac if yours is weak, or it may feel starved.

• Standard crevice tool and 2-in-1 crevice: These are the familiar workhorses for corners, window tracks, and tight shelves. The 2-in-1 has a small brush sleeve you can slide to protect surfaces, though the bristles are on the firmer side. For painted trim and glossy plastics, I preferred the softer dusting brushes.

• Upholstery tool: Basic but useful on car carpets, stair risers, and fabric sofas. On stubborn pet hair, pairing it with a rubber grooming brush before vacuuming worked better than relying on suction alone.

• Sofa dusting brush and horsehair dust brush: Both are compact enough for electronics, vents, and blinds. The horsehair brush is softer than the synthetic bristles, but the bristle density is modest compared to OEM premium brushes. On delicate piano black plastics or monitor bezels, I tested in a small spot first. If in doubt, I used the softer of the two and a light touch.

• Dust brush with tube section and sleeves: Handy for awkward angles where a straight-on approach doesn’t work. The extra sleeves expand fit options, though they don’t convert this kit into a universal fit-all—think of them as minor size shims rather than full adapters.

Build quality and durability

Everything here is polypropylene: light, a bit rigid, and more utilitarian than refined. The crevice tools feel tough enough to live in a shop. The flexible crevice attachment held its shape well under suction without collapsing, which is not always a given at this price. The brush heads are the clear cost compromise. Bristle packs are adequate but not dense, and the backing caps press-fit rather than lock. I didn’t have issues with caps popping off during normal cleaning, but a firm sideways knock could dislodge them. If you plan to keep one brush permanently mated to an adapter, a tiny dot of hot glue or CA on the collar eliminates any wiggle.

As with any friction-fit, wet pickup should be done with the solid crevice or upholstery nozzles. I avoid getting the brushes wet; they’re easier to keep clean and they’ll last longer.

Airflow, suction, and noise

Narrow tools raise static pressure and drop airflow; that’s the trade-off that lets them reach tight spots. On a high-CFM shop vac, the kit felt snappy and effective. On a smaller household canister, I had to use the narrower attachments more patiently, making slow passes. The flexible crevice tool does introduce a bit of whistle on very high suction if not fully seated—press it on firmly and check for a tiny perimeter leak if you hear it. None of the tools choked the vac or triggered bypass valves.

Ergonomics and storage

These pieces are light and easy to maneuver. The overall scale is compact, which helps in cars and around electronics. What’s missing is any kind of storage bag or caddy; with eight pieces, they scatter fast. I tossed the whole set into a small nylon pouch and labeled it “32/35 mm kit.” If you rotate among multiple vacs, consider pre-fitting your most-used heads to dedicated adapters to reduce fiddling.

Fitment caveats

Vacuum connections are a jungle. Even within “1-1/4 inch,” some brands use slightly tapered or proprietary collars. Before buying any generic kit, measure:
- Inside diameter of your hose cuff (if the attachment plugs inside)
- Outside diameter of your wand/tube (if the attachment slides over)

This kit covers the two most common sizes, but it won’t snap-lock to brand-specific quick-connects, and certain shop vac cuffs that are larger than 1-3/8 inch will need a different adapter. If you want an absolutely rigid, lock-button connection, OEM accessories for your specific brand are the safer bet.

Who it’s for

• Budget-conscious users who want a broad set of small attachments for tight spaces
• Car owners looking for a flexible crevice tool without buying a full detail kit
• DIYers who switch between a shop vac and a household canister and just need 32/35 mm coverage

Who should look elsewhere:
- Users who need perfect, locking OEM fitment
- Anyone who demands premium, ultra-soft, dense dusting bristles for delicate finishes
- Vacuums with proprietary quick-release couplers and no 32/35 mm path

Tips for better results

• For a slightly loose fit, add a wrap of painter’s tape or a thin O-ring; it’s cleaner than duct tape and removable.
• Reserve the softer dusting brush for delicate finishes; test in an inconspicuous spot.
• Clean the brushes by tapping and combing the bristles; avoid soaking to keep the backing tight.
• Use the flexible crevice with a powerful vac for best performance; let the tool do the work with slow, steady passes.

Pros and cons

Pros:
- Wide assortment for the price, with a very useful flexible crevice tool
- Covers both 32 mm and 35 mm with the included adapter
- Light, compact pieces that reach tight spaces effectively
- Easy on/off and simple to clean

Cons:
- Friction-fit only; tolerances vary by hose and may need shimming
- Brush bristle density and softness are basic; not ideal for the most delicate surfaces
- No storage solution; pieces are easy to misplace
- Not compatible with proprietary locking systems without extra adapters

Final recommendation

I recommend the Alrens kit as a budget-friendly way to add meaningful capabilities to a 32/35 mm vacuum setup, especially if you’ve been missing a flexible crevice tool for car interiors and hard-to-reach nooks. It’s not an OEM replacement in terms of fit and brush refinement, but it delivers a broad range of functions at a low cost. If you’re comfortable with simple fit tweaks (tape or O-rings) and you don’t need ultra-soft, dense dusting bristles, this set earns its spot in a shop drawer or car-cleaning caddy. If you want guaranteed lock-on connections and premium brush heads, step up to brand-specific accessories; otherwise, this kit covers a lot of ground for very little money.