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Features

  • 6.5 Peak HP Motor – Powerful suction picks up about 1 gallon of water per second
  • Scroll Noise Reduction® is a patented feature that provides quiet operation by precisely controlling the flow of air through the vac
  • Sturdy Cart, Push Handle, & Large Rear Wheels act together allowing the vac to travel easily up & down steps and across rough terrain
  • Quick Release Accessory Storage Bag keeps accessories close at hand but is quickly removable to make emptying debris from drum quick and easy
  • 2-Piece Drum Provides improved, more rugged construction to meet the higher demands found on the job site
  • 3-layer Fine Dust Filter captures fine dust particles such as dry wall dust
  • 7' Dual-Flex® Locking Hose resists collapsing and adds 180˚ flexibility at both hose ends. Hose locks onto vac for uninterrupted cleaning
  • Large Carry Handle allows easy lifting of vac into service vehicle
  • Long 20’ Cord wraps neatly around carry handle
  • Powerful exhaust airstream can be directed through the vac hose to blow debris from garages, decks, and sidewalks

Specifications

Drum Size 16 Gallons (US)
Cord Length 20’
U.L. Listed Yes
Replacement Filters VF3502, VF5000, VF6000, VF7000
Accessory Size 2-1/2"
Shipping Weight 32.8 lbs.
Net Weight 28.2 lbs.

Motor

Peak HP 6.5
Air Watts 306
Voltage 120
CFM 203
Amps 12.0

Ordering Information

16 Gallon Wet/Dry Vac With Cart is rated 4.9 out of 5 by 236.
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Rated 5 out of 5 by from Great suction and easy to move How can I answer the durability question when I just got it. That question should not be asked. Performance is great, suction excellent. It is quiet, something I did not expect, excellent engineering. I had trouble with the bag that you put on in the tank, it would not open because of the filter. I believe this was a bad design. The intake should have been lowered so the bag could expand. The use of the bag is a great idea because it increases the life of the filter.
Date published: 2017-01-07
Rated 5 out of 5 by from Nature may abhor a vacuum, but I love this one. In most cases, this would not be a compliment, but in this instance it is -- this product really sucks. Additionally, the attachments have allowed me to get to hard-to-get-to places. My garage and workshop have never been cleaner.
Date published: 2017-01-06
Rated 5 out of 5 by from #Wet/dry vac Easy to put together. Good balance on wheels. Easy to move around.
Date published: 2017-01-04
Rated 5 out of 5 by from Best Vac I have used This has been the best shop vac I have ever used or owned. I am a DIYer and a hobbyist wood worked and this shop vac is used for remodeling in my home such as drywall dust, and in the shop for cleaning the floors and dust collection on the wood working equipment. This shop vac works awesome for dust collection it not only has the suction of the a shop vac but has the CFM required to move a fair amount of dust. This shop vac is very quiet for a shop vac as well which is a plus in the shop and home. The cart style is very easy to roll around the shop and allows you to easily move it up stairs.
Date published: 2017-01-04
Rated 5 out of 5 by from Suction power compared to my old harbor freight model is breathtaking I had an old harbor freight model. The performance is night and day.
Date published: 2017-01-04
Rated 5 out of 5 by from Hands down the best vacuum of its class !! At a fraction of the cost of the high end vacuums and with the same power, I was looking for a vacuum with a high CFM and this is the only one I could find with the same features, is not only te tool that interests me when I'm looking for something good, is the company behind it, and RIDGID stands behind its product with a lifetime warranty,and none of the other vacuums in the market are doing that!!
Date published: 2017-01-03
Rated 5 out of 5 by from This Vac Sucks!! - As it should! I needed a vac that could be used with woodworking tools as well as normal Wet/Dry shop needs. The WD1851 has a lot of suction and moves a lot of air. I can't comment on durability since it is new but I retired my last vac after many years of hard use. So far, I am happy with it.
Date published: 2017-01-03
Rated 5 out of 5 by from Well worth the money I got this on sale for black Friday and after using it I would gladly pay full price. Loaded with features and easy to maneuver thanks to its design. There's a reason classics don't change.
Date published: 2017-01-01
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4 Questions | 12 Answers

Product Q&A

 
 
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2 years, 4 months ago
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Salt Lake City, UT, USA
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Answer: 
1/203
2 years, 1 month ago
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Madera, CA, USA
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Answer: 
203 cfm
2 years, 1 month ago
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New York, United States
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Answer: 
200+ CFM and it will move 1 gallon of water a minute, this I have done myself
2 years, 1 month ago
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Hulett, WY 82720, USA
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Answer: 
Thank you for your interest in RIDGID!

The water lift of WD1851 is 47 inches while the suction power is 199 CFM.

If you have any further questions or concerns, feel free to call us at 1-800-4-RIDGID (1-800-474-3443) or you may send your email to [email protected]

Regards,
RIDGID
2 years, 4 months ago
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Answer: 
CFM 203
2 years, 1 month ago
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Michigan, USA
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Answer: 
20 pounds, maybe more. CFM 160
1 year, 10 months ago
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Worthington Springs, FL, USA
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3 answers

Pressure

If a airwatts are 0.117354 * (CFM) * (inches water), then do I calculate correctly that this model no. WD1851 will lift water 12.8 inches high?

306 watts * (1/0.117354) * (1/203 CFM) = 12.8 inches of water

I feel like that number is way too low - I'm sure your product lifts water more than 1 foot high! I may have the calculation wrong or the pressure may be specified another way. What do the units of "G/h" mean?

Besides, it seems like an odd coincidence that this is almost exactly the inches for model WD4070 when the WD4070 is rated 5.0 peak HP and the model on this page is rated 6.5 peak HP.

Thank you for the help.
3 years, 1 month ago
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Indiana, USA
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Answer: 
You are right it would lift water more like 10 ft.
1 year, 11 months ago
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Langton, ON N0E, Canada
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Answer: 
According to our Product Manager, You need to first think of CFM and Inches of water lift in inches as two different and inversely related measurements. To maximize CFM, you need a wide open path with as little resistance as possible to move as much air as possible. To maximize inches of lift (or better recognize or measure) that flow of air needs to be restricted, or blocked. So to assume that our machines generate 203 CFM and 49 inches of lift at the same time is a miss-conception. The calculation you completed was “at 306 air watts and 203 CFM, what are the inches of lift being produced”… and the answer is 12.8. Essentially, you’ve identified the inches of lift at the rated max CFM and Air Watts. For example, if you solved for CFM at max inches (say 49) you get a really small CFM number, somewhere below .2 CFM. This is because at max inches (the hose is blocked) and there is “no” air moving through the hose.

We hope this helps. Have a good week ahead!

Thank you
RIDGID
3 years ago
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Answer: 
Thank you, RIDGID! That really helped me understand how the pressure and CFM are related, and the calculation result of 12.8 inches makes sense now. I didn't realize the airwatts equation was NOT referring to "sealed" inches of water. Now I see why using sealed inches for calculating airwatts wouldn't make any sense.

You mentioned 49 inches a couple times. Is that the sealed lift this vacuum is rated for? If not, would you please share the max water lift rating?

Thank you again.
3 years ago
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Indiana, USA
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1 year, 9 months ago
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Bakersfield, CA, USA
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Answer: 
I've got 16 Gallon Model # 1851 and it takes Vac Bag VF3502

I think they are usable on both models, but you'd still need to double check. Maybe Home Depots site or just call or email Rigid.
1 year, 4 months ago
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Richford, VT, USA
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Answer: 
Thank you for your interest in RIDGID!

Please confirm the exact model of your vac. The WD16650 model is not designed to hold a filter bag. But the product above is the model number WD1851 which is designed to accommodate a filter bag. If your vac is WD1851, the part number of the filter bag is VF3502.

If you have any further questions or concerns, feel free to call us at 1-800-4-RIDGID (1-800- 474-3443) or you may send your email to [email protected]

Regards,
RIDGID
1 year, 9 months ago
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1 month, 1 week ago
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Answer: 
Hi Crystal,

RIDGID Wet/Dry Vacs come with a lifetime warranty against manufacturing and material defects from the date of purchase. There's is no need to call to activate the warranty.

If you have any further questions or concerns, feel free to call us at 1-800-4-RIDGID (1-800-474-3443) or you may send your email to [email protected]

Regards,
RIDGID
1 month, 1 week ago
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