Flexio 4000 Sprayer

$ 249.99
The FLEXiO 4000 stationary paint sprayer is perfect for longer painting projects, with less weight in your hand, because the motor is housed in the base on the ground. It has variable speeds for cutting time and effort on painting projects and can paint a wall 11 times faster than a brush.

The 4000 comes with 2 different nozzles – one for painting multiple rooms, decks and sets of furniture. The other nozzle for fine finishing on cabinets and trim. The new nozzle design delivers an improved spray pattern and adjustable control with less mess and overspray.

It has the flexibility to spray indoors and outdoors with the power to spray unthinned paint and stains with full coverage. Cleaning is faster than a brush or roller with just a few removable parts that separate and rinse clean.

Covers an 8’x10’ surface in minutes:
-Stain: 1 minute
-Latex: 5 minutes


FLEXiO 4000 & 5000 Setup
FLEXiO 4000 & 5000 Setup  Video
FLEXiO 2000, 3000, 4000, 5000 Spraying
FLEXiO 2000, 3000, 4000, 5000 Spraying Video


  • X-Boost® Turbine
  • iSpray® Nozzle – For walls and ceilings
  • 15-Foot Air Hose
  • 1 ½ quart cup covers up to a 10’ by 12’ wall in one fill
  • Precise adjustments for various coatings and projects
  • Lock-n-Go® split gun design for quick cleaning
  • Zippered bag for storage of nozzles/cups and air hose
  • Detail Finish Nozzle - For small projects and a smooth finish
  • Cleans up in 5 minutes - just five parts to rinse off


Best Used On:

Small Craft Object, Furniture, Cabinets & Trim, Large Fence/Deck, Interior Room, and Exterior House/Shed

Optimal For

Exterior Latex, Interior Latex, Wood Sealers, Chalk/Milk Paints, Lacquers / Urethanes, and Solid Stain

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Parts and Accessories

P/N 0529013
Detail Finish Front End

Detail Finish Front End

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P/N 2331571
Air Filter for Flexio Handheld Sprayer (Single Pack)

Air Filter for Flexio Handheld Sprayer (Single Pack)

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P/N 0520006
iSpray Front End

iSpray Front End

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P/N 0529055
Studio Spray Tent

Studio Spray Tent

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Flexio 4000 is rated 4.3 out of 5 by 42.
Rated 2 out of 5 by from Does not spray nearly as paint as expected. Just bought 2 4000's today. Very disappointed in the spray volume. To bad I used both them or I would be taking them back. A roller is much faster and covers better
Date published: 2020-07-01
Rated 5 out of 5 by from BLOWN AWAY I decided to paint and drylock my basement walls. After brushing on 2 walls of Drylock I figured there has to be a better way. Went out last night and purchased the 4000 after reading all reviews. I read the instructions carefully and went to work. OMG how simple this is. I had not one problem! Finished spraying the two walls in 30 minutes and clean up couldn't be any easier. If your having a problem, go back and read the instructions.
Date published: 2020-05-12
Rated 5 out of 5 by from New kitchen Finished making new cabinet doors for my kitchen and used the Wagner 4000 to spray the paint. Finish was better than that of some professional built cabinets that you find in home improvement stores. Just finished restoring my wife's mother old chair. Used finishing gun on this. Did ok, but wish that it had the same type of flow control as the other gun
Date published: 2020-04-28
Rated 1 out of 5 by from Motor Quit I bought this to paint two bathrooms that we had remodeled and an office in our house. I was surprised but ok with the amount of masking off that I had to do. I had to do the ceiling in the office along with the walls. Had issues with clogging but I think that was more operator error than anything. Afterwards, I cleaned the unit and nozzle per the instructions. The next day I set up to do the walls. Once I got the adjustments right, it worked great and I was pleased with the results for the first two and half walls. Then the trouble started: Mid-way through the third wall, the motor started making a funny noise and losing power. I shut it off and thought maybe I would let it cool. After about an hour, I tried again and the motor continued to make a bad noise and lost power and started to smell. I am going to take it back to the place of purchase for my money back.
Date published: 2019-11-11
Rated 1 out of 5 by from No parts available Recently bought the unit and used it once. Performed ok and cleanup was easy. Now need it again but somehow I misplaced the sprayer handle. Search on Wagner website for Flexio 4000 parts shows no results.
Date published: 2019-09-27
Rated 1 out of 5 by from Disappointing Sprayed 4 interior doors on two occasions. Started this week painting my exterior,made it 1/3rd of the way down a 28x7 wall and the turbine burnt out. I keep my tools clean, both filters were clean and I'm spraying latex which the Flexio 4000 is set up for. My sprayer is just outside of the 12 month warranty. Guess I'll head to the man store Harbor Tool Freight....
Date published: 2019-05-24
Rated 5 out of 5 by from Plenty of power I applied an Al’s bed liner using the Wagner 4000. The material is a thick-pudding type of substance. But It shoots the product out really well and Much faster than I expected. Controls over spray nicely too. I feel this gun is more practical to use than the hoper style pneumatic gun the product came with. The key to clean up is to wait till the next day once it’s fully dried. Then disassemble the gun and peel the dried product right off of the components.
Date published: 2019-05-17
Rated 5 out of 5 by from Great tool Facing the task of painting twelve doors (four are louvered bifold) and many shelves I decided to purchase this tool. My initial use was with primer. Second was with latex enamel. In each case the paint went on good with no thinning required. I did have to make flow adjustments,as expected. Cleanup was quick and easy. I painted two bi-fold doors and six medium shelves, with cleanup, took less time than painting one of the doors by brush. In fact less time than cleaning a paint brush and roller. Yes over spray does appear to waste paint. But the cost of the paint loss compared to the time saved is acceptable.
Date published: 2019-02-07
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What is the difference between 0529017 PaintREADY Station and the flexio 4000

Asked by: cp24
The Paint Ready Station comes with the iSpray front end nozzle for applying thick materials to projects like your fence, deck or walls. The Flexio 4000 has the iSpray and the Detail Finish front end nozzle for applying a fine finish to projects like trim, furniture and cabinets.
Answered by: Technical Support
Date published: 2020-10-26

Can my Flexio 4000 spray latex paint.

Asked by: esturju
Yes it can spray latex paint. Un-thinned latex paint in the iSpray front end, thinned latex paint in the Detail Finish front end for a fine finish. For more help call us at 1-800-328-8251.
Answered by: Technical Support
Date published: 2020-10-26

I have a 4000 unit, is there a way to hook up a hose to the spray unit so I can use the pick up hose in a 5 gallon bucket.

Asked by: golfstx
Sorry, there is no such attachment for any of our HVLP sprayers.
Answered by: Technical Support
Date published: 2020-10-26

Does the sprayer cause over spray particulate to drift?

Asked by: Ronaldhunt
Yes, all sprayers create over spray. With HVLP it's a minimum amount, but still present and it should be accounted for when spraying. For instance an air compressor gun will have about 60% efficiency, an airless sprayer has about 35% efficiency...HVLP is about 95% efficient. Meaning that 95% of the paint sprayed, lands on the project. For more help choosing the right sprayer for your projects, call us at 1-800-328-8251.
Answered by: Technical Support
Date published: 2020-10-19

What store carries sprayer cup liners   P/N 0520124

Asked by: Patsy
You can order them here - https://www.wagnerspraytech.com/parts-and-accessories/paint-sprayers/
Answered by: Technical Support
Date published: 2020-09-08

Does the detail sprayer need the paint to be thinned in order to work properly?

Asked by: Rachel2831
Thank you for reaching out to us. The Detail finish nozzle works best on fine finish projects such as spraying cabinets, furniture, doors, trim etc... It will provide a smoother, finer finish than the iSpray Nozzle. Depending on your material, the Detail Finish Nozzle may require some thinning of your material in order to spray properly.
Answered by: Technical Support
Date published: 2020-08-20

Can you use this with chalk paint 

Asked by: Jambev
Yes you can spray chalk paint with the Flexio 4000. Using the iSpray nozzle it will sprayed unthinned, using the Detail Finish nozzle will require some thinning (up to 40%) for a fine finish application. Call for application tips at 1-800-328-8251.
Answered by: Technical Support
Date published: 2020-08-02

No thinning of paint or stains?

Asked by: Sizieq
The Flexio 4000 comes with two front end nozzles. The iSpray nozzle is for your fence, deck or walls, with unthinned latex paints and stains. It will leave a roller like texture. It also has the Detail Finish nozzle for your trim, furniture and cabinets. In the Detail you should thin latex paint about 10% with water. Spray from 6" away and apply a wet coat. For more application tips, call us at 1-800328-8251.
Answered by: Technical Support
Date published: 2020-07-30
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