THE SL-6 / SL-8

Robust Wet And Dry Vacuum – Cleans Up Liquid Spills PLUS Dry Dirt, Muck & Debris

How You Can Always Rely On The SL-6 / SL-8 Wet And Dry Vacuum When Things Get Very Messy

The 20L Wet/Dry Vacuum For The Cleanest Job


One of the toughest and most robust wet/dry vacs made of steel parts


Excellent durability & reliability to outlast & outperform the competing vacuums

vacuum cleaners

Superior performance in liquid/dry pick-up.


Gives you flexibility in taking on any job with wide array of tools & accessories.

vacuum cleaners tools

Deep clean carpets by plugging in a power brush to the onboard auxiliary power outlet.

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5 Features That Will Make Your Job Easier & Quicker

Click the to discover how the SL-6 / SL-8 makes life easy for you.


The SL-6 and SL-8
Compared Side-by-Side



Centaur SL-6 Canister Wet/Dry Vacuum

20 L Wet/Dry Vacuum


Centaur SL-8 Canister Wet/Dry Vacuum

20 L Wet/Dry Vacuum


Primary Application Wet/Dry Application Wet/Dry Application
Dirt Collected Into Tank Tank
Electrical Supply 110 V – 15 A Outlet
50/60 Hz
110 V – 15 A Outlet
50/60 Hz
Motor Two-Stage Motor 1050 W By-Pass Motor 1340 W
Operational Electrical Demand 759 Watts / 6.5 Amps 784 Watts / 6.8 Amps
Recovery Capacity 20 L / 5 GAL 20 L / 5 GAL
Noise Level 70 dBA 72 dBA
Airflow 135 CFM 150 CFM
Water Lift 80 inches 90 inches
Machine Weight 23 lbs (10.43 kg) 23.3 lbs (10.57 kg)
Cable Length 40 ft (12 m) 40 ft (12 m)
Hose (1.5″ Dia.) Length 10 ft (3 m) 10 ft (3 m)
With Optional Toolkit (#1B49974) SL-6 + Toolkit (#1W12032) SL-8 + Toolkit (#1W12035)

2-Year Ironclad Guarantee

“Bumper-To-Bumper Protection for Your Peace of Mind”


Centaur vacuum cleaners are built for toughness, durability and reliability.

In the highly unlikely event that your Centaur vacuum cleaner experiences a mechanical or electrical problem due to a manufacturing defect within the 2-year guarantee period, simply call us at (877) 388-2430 to have it resolved.

We will repair it for FREE, or if we cannot repair it, we will replace it for FREE.

Tools & Accessories To Help You Clean Better... And in Less Time

SL-6/8 Wet/Dry Vac Filters

  • Centaur SL-6/8 Cloth FilterCloth Filter
  • Fine Dust Filter
  • Centaur SL-6/8 Wet FilterWet Filter
  • Centaur SL-6/8 Slurry FilterSlurry Filter
Item Part #
Washable Dry Cloth Filter for SL-6/8 1E46010
Fine Dust Filter (For SL-6/8) 1E46224
Wet Filter for SL-6/8 1E46210
Slurry Filter for SL-6/8 1E46100

Wet/Dry Tool Kit #74

  • Dry Floors
  • Wet Floors
  • Carpet

This tool kit includes:

  • 1½” 3-piece friction-fit steel wand
  • 12″ combination floor and carpet tool
  • 14″ friction-fit swivel squeegee
Item Part #
Wet/Dry Tool Kit #74 1B49974
Includes Part #
3-Piece Friction Fit Steel Wand 1B50010
14″ Swivel Squeegee 1B50075
Combination Floor/Carpet Tool 1B50060

14″ Squeegee Tool

14" vacuum accessories

This light-weight, sturdy squeegee is the most efficient tool for chemical, oil & grease, and water pick-up from smooth or concrete floors. It slides along freely without losing any of its extraction efficiency.

The tool’s blades are double the thickness of standard blades, providing increased rigidity during use and ensuring a high contact area with the floor. Additionally, these blades can be replaced as needed.

Item Part #
14″ Standard Plastic & Rubber Squeegee 1B50100
14″ Chemical Resistant Squeegee 1B50104
14″ Oil & Grease Pick-up Squeegee 1B50106

17″ Dial-A-Job Aluminum Tool

17" dial-a-job vacuum tool part #1B55540

The Dial-A-Job is the most versatile tool for wet pick-up. You can adjust the height of the blade making it easier & more efficient to pick-up water from any hard surface while moving the tool effortlessly on its two end-wheels. The 17″ tool width let you clean-up in the shortest time possible.

The Dial-A-Job is also an excellent tool for dry pick-up and commercial/office carpet cleaning.

Item Part #
17″ Dial-A-Job Aluminum Tool 1B55540

18″ Versa Wet/Dry Combination Tool

17" Versa combination Tool 17-inch 1B55500

The heavy-duty Versa Tool employs removable bristle brushes for cleaning carpets and can be easily swapped to rubber blades for water extraction without any additional tools.

Learn More

14″ Felt Tool

14" 14 plastic felt tool - vacuum-accessories

The felt tool takes the worry out of cleaning hardwood, marble and polished floors. The replaceable felt blades protects the shine while dust is being removed in a fast and efficient manner.

The thickness of the felt ensures it doesn’t collapse under heavy use.

Item Part #
14″ Felt Tool 1B51200

15″ Sidewinder Squeegee Tool

15" 8-sidewinder carpet tool - vacuum accessories

The sidewinder squeegee is the fastest way to pick-up liquid especially if you are covering a large area. The single (replaceable) rubber blade works faster and quieter than a regular squeegee.

Item Part #
15″ Sidewinder Squeegee Tool 1B56022

14″ Wessel-Werk

14" 12-inch wessel werk power brush - vacuum accessories

This German-made power brush picks up dirt on all carpets including thick carpets, and offers 5 levels of height-adjustment (done with a pedal so you don’t need to bend down).

Features include an ergonomic handle, pivot and swivel neck, telescopic wand, electrified hose, and LED headlight to get right under or around furniture for a thorough clean.

The brush moves dirt straight to the large orifice (which reduces the chances of clogging) and takes advantage of full suction power of the vacuum.

Item Part #
14″ Wessel-Werk 1F13500

Carpet Brush Tool

11"16" carpet brush tool - vacuum accessories

This popular 11 or 16 inch tool is equipped with an adjustable-height nylon brush to clean different piles of carpet and rid them of any lingering lint.

Item Part #
11″ Plastic Brush Carpet Tool 1B51000
16″ Plastic Brush Carpet Tool 1B50900

Sidewinder Hard Surface Brush Tool

8"15"18" 8-sidewinder brush tool - vacuum cleaners

Natural or synthetic bristles make this tool perfect for floors, walls, & overhead pipe.

The brush bristles are replaceable.

Item Part #
15″ Sidewinder Natural Bristle Brush 1B56012
15″ Sidewinder Synthetic Bristle Brush 1B56008
18″ Sidewinder Natural Bristle Brush 1B56010
18″ Sidewinder Synthetic Bristle Brush 1B56006

Sidewinder Carpet Tool

15"18" vacuum cleaners - sidewinder carpet tool

The sidewinder carpet tool is excellent for cleaning low pile carpets and lets you complete the job in half the time with it’s side-to-side sweeping motion. Attaches to friction-fit wand.

Item Part #
15″ Sidewinder Carpet Tool 1B56018
18″ Sidewinder Carpet Tool 1B56016

Sidewinder Felt Tool

15"18" 8-sidewinder carpet tool - vacuum cleaners

The sidewinder felt tool is ideal for cleaning hardwood and concrete floors because of the uniform felt surface.

This tool is also ideal for cleaning vertical surfaces, like walls.

Item Part #
15″ Sidewinder Felt Tool 1B56002
18″ Sidewinder Felt Tool 1B56000

14″ Smooth Surface Brush

14" 14-inch smooth surface brush

This durable floor brush is ideal for use on hard surfaces. The brushes are made of durable ABS plastic with tampico, nylon or horsehair bristles that allows you to vacuum while you sweep.

Item Part #
14″ Plastic Tampico Bristle Tool 1B50400
14″ Plastic Horsehair Bristle Tool 1B50450
14″ Plastic Nylon Bristle Tool 1B50460

11″ Aluminum Horsehair Brush

11" 11 inch horsehair bristle tool (1B54600)

This heavy-duty, long-lasting cast aluminum horsehair brush offers superior pick-up volume due to its large intake. The rubber bumper protects furniture and walls while vacuuming.

Item Part #
11″ Aluminum Horsehair Brush 1B54600

12″ Aluminum Gulper Tool

12" 14-plastic tampico bristle tool

As its name suggests, the gulper swallows large objects or large volumes of debris with its wide opening.

It’s cast aluminum body with a riveted steel hose end makes it a great tool for construction clean-up.

Item Part #
12″ Aluminum Gulper Tool 1B54500

20″ Nylon Floor Brush

20" 20-nylon floor brush

This “wide” 20″ floor brush lets you get great cleaning results in even less time. The brush is slotted at the front to better channel airflow while the blue rubber bumper helps protect walls and furniture during vacuuming.

Item Part #
20″ Nylon Floor Brush 1B50500

Plastic Crevice Tool

11"17" plastic crevice tools

The most efficient tool for cleaning narrow or difficult-to-reach areas. These light, economically-priced tools will ease back-strain by practically eliminating the need for bending and stretching to get the job done.

Item Part #
11″ Plastic Crevice Tool 1B50700
17″ Plastic Crevice Tool 1B53000

Steel Crevice Tool

15"27" steel crevice tools

Constructed of steel, these crevice tools are practically indestructible and allow you to reach into deep areas without worrying about the tool ever breaking or getting lodged and becoming unretrievable during cleaning.

Item Part #
15″ Steel Crevice Tool 1B53100
27″ Steel Crevice Tool 1B53200

Aluminum Pipe Tools

1-3"4-6"6+" aluminum pipe tools

Aluminum pipe tools (that come with a 1.5″ adapter) are designed for jobs where you need more weight on the tool to remove dirt and dust from different sized pipes and conduits.

The bristles on these tools are easily replaceable.

Item Part #
1-3″ Aluminum Pipe Tool 1B54100
4-6″ Aluminum Pipe Tool 1B54200
6″+ Aluminum Pipe Tool 1B54300

Plastic Pipe Tools

1-4"4-8" vacuum accessories - pipe tools

These pipe cleaning attachments are made from nylon bristles and fit a standard 1.5” handle or friction wand. The tools easily reach over pipes, trusses, etc, and provide effective brushing against dirt and dust.

Item Part #
1-4″ Plastic Pipe Tool 1B54310
4-8″ Plastic Pipe Tool 1B54305

Ventilation Tools

1'2'4' ventilation tools - vacuum accessories

These ventilation tools are designed to effectively clean large diameter round surfaces such as HVAC ventilation ducts.

When you attach these tools to telescopic wands and extenders, you can reach ducts in ceilings as high as 20′.

Item Part #
1′ Ventilation Tool 1B56030
2′ Ventilation Tool 1B56032
4′ Ventilation Tool 1B56034


all wands - vacuum accessories

Extension wands, extenders & fittings are a must for any commercial cleaner that wants to do a better job of reaching those hard to get to areas. Our wands & tools make vacuuming easy and ergonomic. Saving you time, sweat and money.

See All Wands

Item Part #
Wands various

Hose With Ends and Stabilizer (10′)

10' hose with ends stabilizer - vacuum accessories

This hose is designed for use with Centaur’s 20L (5gal ) capacity SL-5, SL-6 and SL-8 vacuums.

The stabilizer ensures that the vacuum canister does not topple when the vacuum is being dragged by the hose.


  • 1.5″ diameter hose end – Part # 1B52020
  • 1.5″ diameter steel hose end – Part # 1B52024
Item Part #
Hose With Ends and Stabilizer (10′) 1B56101

Hose with Ends

10'20'30' hose with ends - vacuum accessories

These vacuum hoses come complete with 1.5″ hose ends on either end ready to attach to your Centaur vacuum and your vacuum wand.


  • 1.5″ diameter hose end – Part # 1B52020
  • 1.5″ diameter steel hose end – Part # 1B52024
Item Part #
10′ 1½” Hose With Ends 1B56107
20′ 1½” Hose With Ends 1B56102
30′ 1½” Hose With Ends 1B56103

Premium Hose Only

10'20'30'50' hose without end - vacuum accessories

This heavy duty, crush proof commercial vacuum hose is ideal for all types of rugged wet and dry applications.

The smooth interior ensures nothing gets stuck or clogs these hoses. The hose is compatible with almost all commercial wet & dry vacuums and requires a standard 1.5″ threaded cuff end.

You can get these hoses in different lengths from 10′ to 50′.

Item Part #
10′ 1½” Hose Without Ends 9K56001
20′ 1½” Hose Without Ends 1B56114
30′ 1½” Hose Without Ends 1B56115
50′ 1½” Hose Without Ends 1B56100

Get The Quick-Look PDF Product Brochure

Get the most important "at-a-glance" info about how Centaur Machines makes your life easier and lets you finish jobs in LESS time.

Frequently Asked Questions

How often should I change the filters on the SL-6 / SL-8?

We suggest you regularly clean or hand-wash the micro dust filter, wet filter and slurry filter. We recommend changing these filters after 4-5 years of regular use.

We recommend you machine wash your cloth filter every six (6) months and replace the filter after 4-5 years.

Can I use my Wet/Dry SL-6 or SL-8 for carpet cleaning?

Yes. All Centaur vacuum cleaners offer an on-board power receptacle where you can plug in a Wessel-Werk power brush and deep clean carpets.

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The Best Protection Guarantee In The Industry

You have 3X the PROTECTION when you purchase a Centaur SL-6 / SL-8 Vacuum

30-Day Money Back

performance guarantee

If the Centaur SL-6/8 Vacuum doesn’t get the work done faster and better than ANY other machine you’ve used before, simply contact our office to have it returned (within 30 days of purchase) and receive a FULL REFUND. Plus, we’ll cover the shipping cost.

10-YEAR Toughness

quality guarantee

If your Centaur SL-6/8 Vacuum ever has a manufacturing defect on Non-Wearable/Non-Moveable Components* we’ll Fix or Replace Your Floor Machine within 1 business day… for FREE!

10-YEAR Performance

motor guarantee

If you use the Centaur SL-6/8 Vacuum under normal conditions and the Motor gives up, we’ll Fix or Replace the Motor on your Centaur Floor Machine within 1 business day for FREE**.

Leading Institutions That Select Centaur Floor Machines

NWR painting inc

The Vacuum Worked Flawlessly!

“So I just wanted to let you know I received the Falcon-5 and put it to work right away. I removed the popcorn ceiling in an entire house and filled 2 garbage bags full of drywall dust.

The vacuum worked flawlessly! The HEPA filter was spotless and the bag pre filters that you gave me were very important in this process.

Centaur switched the 10-foot hose to a 20-foot hose for me and they replaced the white filter bag with the grey drywall dust one. This level of customer service is hard to come by these days and because of that I have recommended the vacuums to a bunch of other painting companies in the US.

Thank you so much for Coordinating all of this and providing such amazing service and product.

Hats off to you for being a needle in the haystack in this day and age.”

—Nick Rochacewich, NWR Painting Inc.


Exceptional Workmanship

“Centaur products have proven to be highly effective, extremely durable and cost effective. The Rabbit line meets all of or scrubbing, stripping and bonneting needs and we have many that are still in service that were purchased over ten years ago.

Furthermore, it has been our pleasure to deal with your company. You and your staff have always conducted yourselves with the highest level of integrity. That, together with a very solid product offering, has made this a very beneficial partnership.”

—Brian Gingras, CBSE President Bee-Clean Building Maintenance

jennifer car painting logo

The Best Vacuum I Have EVER Owned

I wanted to introduce you to BLUE BOY! She is the best vacuum I have EVER owned. Thanks @nwrpainting for the recommendation and thank you @centaurfloormachines for creating a vacuum that actually works and actually sucks ?? (Instragram)

—Jennifer Carr, Jennifer Carr Painting