Flexio 4000 Sprayer

$ 199.99
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 41.
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
Rated 2 out of 5 by from Unit brought me pain whilst ceiling painting Second use on ceilings to n my house. First room was last week and the Flexio 4000 performed well. After about 2 gallons of spraying yesterday it was spit clog and poor spray pattern. Cleaned nozzle and air passages and then noticed the unit was spewing paint with the trigger released... Sometimes this was a lot of volume. Stopped work and went thru the cleaning procedure.. Dunked the valve head on warm soapy water, cleaned with brush... Reassembled and ran for a time before spewing again... And poor pattern onto ceiling. Arrgh! Today after an all night soak with the trigger held open to get cleaning water in there, I reassembled the unit to repaint over the 35 by 25 foot area of bad application and did a water test into the shower... Wuff! Spewed water when no finger on the trigger! So I repainted a 50 by 25 foot ceiling with my Wagner smart sidekick power roller in have the time it took this futzy sprayer to do a lousy job. I conferred with another Flexio owner and he reports the same spew issue with his unit... Seems the material release valve opened by the trigger does not seal once the unit has a few gallons through it. Since Tec Support was closed by the time I could call them, I decided to post this review. I need to know from Wagner of the material flow valve can be cleaned.. Do I need to disassemble the trigger and pull out the back end of the head unit to fix this thing? I suspect Wagner doesn't do field testing of these Chinese made Flexio units... Otherwise they would have encountered what looks to be a design flaw!
Date published: 2019-01-22
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What is the spraying pressure and large tip size of FLEXiO 4000

Asked by: Doug1043
The Flexio 4000 HVLP operates at 3 psi and the iSpray nozzle has a 2.5mm tip. For more information call us at 1-800-328-8251.
Answered by: Technical Support
Date published: 2020-06-22

What is the best way to clean?

Asked by: Seals
Here is a link to a cleaning video - https://www.youtube.com/watch?v=RvFcTSJ8zgQ The owner's manual also has a detailed description of the cleaning process. It's very easy to clean. Always remove the front end from the turbine, then for cleaning water based paints, use warm water to clean each of the individual parts, then reassemble the sprayer and spray some water through to make sure it's all clear. For oil based paints/stain use mineral spirits to clean with gloves, a rag and a brush, then after using mineral spirits the sprayer should also be rinsed with water. For more help call us at 1-800-328-8251.
Answered by: Technical Support
Date published: 2020-06-19

I bought a Flexio 4000. How do I put the compressor, spayers and the hose in the carrying bag?

Asked by: Rooky
The turbine does not fit in the bag. But everything else does!
Answered by: Technical Support
Date published: 2020-06-18

What PSI is the 4000 and tip size, like 0.31-.050.. or does this have a FLOOD COAT setting? A representative from Rain Guard fence sealer (SP-8002 ) says the sprayer has to be at least <500 psi. tip somewhere around 0.31-.050. also dont atomize (or mist)

Asked by: Bobio
Our Flexio HVLP sprayers operate at less than 4 psi and have a 2.5mm tip or a 1.8mm tip. The numbers you are asking about are for commercial high pressure sprayers. Take a look at these tools - https://www.titantool.com/products/electric-airless-paint-sprayers/impact-series.html A required tip size of .031-.050" indicates a very thick paint, which will not spray well with an HVLP unit.
Answered by: Technical Support
Date published: 2020-06-16

What’s the difference between the FLEXiO 4000 and 4300?

Asked by: cmev
The Flexio 4000 has the pressure fed Detail Finish nozzle while the 4300 has the gravity fed Detail Finish nozzle. Otherwise, they are the same.
Answered by: Technical Support
Date published: 2020-06-09

Just started using this n I'm getting blotches. Is my air flow to high?

Asked by: Bob 66
The Flexio 4000 comes with two nozzles. The iSpray nozzle is for your fence, deck or walls with unthinned latex paints and stains. Power at max and paint flow lower for better atomization. Spray from 6-10" away and apply a wet coat. The Detail Finish nozzle requires that thick latex paints be thinned, about 10% with water. Again with power up high and paint flow down low for better atomization. Spray from 6" away and apply a wet coat with each pass, not 5 passes to get it wet. For more application tips, call us at 1-800-328-8251.
Answered by: Technical Support
Date published: 2020-06-07

Can drylok paint be used with this sprayer?

Asked by: Anonymous
No, you cannot spray DryLok with any homeowner style paint sprayer, it's just too thick! Better off rolling and brushing it.
Answered by: Technical Support
Date published: 2020-06-02

This gun can be used with either acrylic or silicon sealants

Asked by: Highlatin
The Flexio 4000 HVLP is a paint and stain sprayer for your around the house projects. Water based paints, stains and finishes are just fine. Silicone? NO. To discuss further give us a call at 1-800-328-8251.
Answered by: Technical Support
Date published: 2020-05-26
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