Qty:1
ARO F35121-400-VS Air Lin... has been added to your Cart

Have one to sell? Sell on Amazon

ARO F35121-400-VS Air Line Filter, 1/4" NPT - 150 psi Max Inlet

4.1 out of 5 stars 83 customer reviews
| 17 answered questions

Price: $18.47 & FREE Shipping on orders over $49. Details
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
    This fits your .
  • Enter your model number to make sure this fits.
  • 1/4-Inch NPT
  • Standard Filter - 5 Microns
  • Manual drain
  • 0.5-Ounce polycarbonate bowl with guard
  • 49 CFM
2 new from $18.47
$18.47 & FREE Shipping on orders over $49. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • ARO F35121-400-VS Air Line Filter, 1/4" NPT - 150 psi Max Inlet
  • +
  • Anderson Metals 56122 Brass Pipe Fitting, Hex Nipple, 1/4" x 1/4" NPT Male Pipe
Total price: $21.53
Buy the selected items together

Special Offers and Product Promotions


Product Description

From the Manufacturer

ARO-Flo compressed air filters are designed to remove airborne solid and liquid contaminants. Filters can be ordered with different elements, including coalescing models which are capable of removing oil aersols and particles down to 0.3-Micron. Standard filters are sold with 5-Micron elements; 40-Micron elements can be purchased and installed separately.

Product Information

Technical Details

Part Number F35121-400-VS
Item Weight 7.2 ounces
Product Dimensions 6.5 x 3.4 x 2.8 inches
Item model number F35121-400-VS
Size 1/4-Inch
Color Black
Item Package Quantity 1
Warranty Description 2 Year Limited Warranty

Additional Information

ASIN B0057D8LII
Customer Reviews
4.1 out of 5 stars 83 customer reviews

4.1 out of 5 stars
Best Sellers Rank #22,204 in Home Improvements (See top 100)
#65 in Home Improvement > Power & Hand Tools > Power Tool Parts & Accessories > Air Tool Parts & Accessories > Air-Compressor Accessories
Shipping Weight 7.2 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available July 6, 2011

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Feedback

Would you like to give feedback on images?
Would you like to tell us about a lower price?

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
I bought this to keep moisture out of the R37121-600-VS 1/4" regulator on my 30 gallon automotive compressor. I use the compressor to run an airbrush. So, the compressor only cycles a few times a day, but the unit is pressurized all day long. Therefore, I like components to hold pressure - Leaking air is a bother. This filter holds pressure quite well with little noticeable loss after a day.

The filter seems carefully designed and well made. It is light-weight, but it does not look or feel cheap. I think it will last. The housing is plastic with aluminum internal components. It has a clever, sliding detente to release the bowl. Like other manual drain filter units, there is a pin at the bottom that can be pressed to release air and water while the compressor is pressurized. When the compressor is depressurized, you can remove the bowl.

This filter is cost effective, holds pressure, and works well. I recommend it.
Comment 28 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Verified Purchase
Once these are installed CORRECTLY, they work well!

First off... they are small. Don't expect something 12" tall, they are very small in size.

Second... they are NOT supposed to be installed near the compressor itself. For a filter to work properly, the air has to be cool as it enters the filter. If near the compressor, the air is hot and it will not separate the water. MAKE SURE to mount far from the compressor, and near the tool or end of hose.

Third... it's always best to use hard line up to the filter, from the compressor. Air Hose, is not the answer. Make sure to use the proper hard line (pipe) to the filter for it to be most efficient.
5 Comments 26 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Updated 5 Mar 2015: Note: this review is actually for the 3/8 combination filter/regulator, model P39234-600-VS.

When I first received this filter, the o-ring for the canister-to-housing seal was twisted and pinched, causing the filter to leak considerably. With a bit of fuss, I was able to re-seat the o-ring, and get it to hold pressure. You also have to be careful to wiggle the drain valve a bit after draining the water to get it seal tightly. Another gripe is that it doesn't come with a wall-mount bracket, so I built one myself (see attached picture).

Overall, it's functional, extracts moisture from the air line, and is easy to drain. It does leak a tiny bit, causing the air compressor to come on approx 3-4 times per day for a few seconds when not in use, but that's bearable.
4 Comments 22 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Verified Purchase
I purchased a 40lb blast cabinet from HF and needed a water separator tied in at point-of-use. I went to the local home store and grabbed a few 1/4" gas line elbows and a few short straights to get this lower then the door. It works great with my 5gal portable Rigid air compressor. Zero leaks at 140 PSI and removes a lot of water. I used Teflon tape on all connections of course.

Quality seems nice. Nothing bad to say about this product. My blaster works great after adding this.

Much better water removal then the $5 straight line ones you find at home improvement stores. This won't replace a nice high end filter/separator combo but for point of use and the price, not found better.
Comment 16 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Verified Purchase
once you see how much water and dirt this is keeping out of your air tools you'll agree. The only problem is I have to empty it every day! make sure you don't install it right after the regulator, the air has to cool first in order for it to do its job.
Comment 4 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Verified Purchase
Great build quality and a trusted brand. You can tell by the box these come in that these are professional grade. Perfect match for the corresponding regulator in the same size and product line. Too early to tell on performance but looks and feels great. No need to remove the catch bowl to drain. No leaks. Holds Pressure. It's much better than any other drier I've used before. Draining is a snap with the tiny air valve push-pin on the bottom - same type of valve used on a tire stem - just push to drain, release and it seals perfectly. Grey housing is heavy duty and uses a twist-lock design. Extremely happy with this filter!
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Verified Purchase
If you paint with a spraygun or do sandblasting with the compressor or just if you want to protect your tools by getting the moisture in the condensation out of your line this is a must have great product great price.
Comment One person found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Verified Purchase
Purchased this to capture water from my compressor line because I trust the IR brand. When I receive the package I was disappointed that it was about 1/2 the size I expected. It literally fit in the palm of my hand. I kept it to use as a supplementary inline filter and purchased a CH filter as the primary. Works as it should, but tiny size is for compressors under 10 gallons.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse

Most Recent Customer Reviews

Set up an Amazon Giveaway

ARO F35121-400-VS Air Line Filter, 1/4" NPT - 150 psi Max Inlet
Amazon Giveaway allows you to run promotional giveaways in order to create buzz, reward your audience, and attract new followers and customers. Learn more about Amazon Giveaway
This item: ARO F35121-400-VS Air Line Filter, 1/4" NPT - 150 psi Max Inlet