Skip to main content
HalloweenPetLawn & GardenTruck & AutomotiveSporting GoodsHorseFarm & RanchClothingLivestockPet & Animal PharmacyToolsPoultryFencing & GatesHome ImprovementOutdoor LivingHeating & CoolingHome Decor & FurnitureOutdoor Power EquipmentTrailers & TowingBoots & ShoesWild Birds & WildlifeToysGift CardsServices Propane RefillTrailer RentalGarden CenterFeed CenterSame Day DeliveryPetVet ClinicPet WashGrooming at PetsenseDog Training at PetsenseTractor Supply RxPet InsuranceWag!

"Savings and Offers"

Weekly AdSaleClearance

"More Options"

Weekly AdWhat's NewTractor Supply AppEarn Rewards with Neighbor's ClubHometown HeroesLife Out Here BlogTSC Exclusive BrandsTop BrandsClearance ItemsBattery FinderOutdoor Power Equipment Parts FinderHitch Finder

Spend $49.99 to unlock Free Delivery on most orders

|
Learn More
Order statusTSC Credit CardsWhat’s newPetsenseWeekly Ad
​
Sign In / EnrollGet rewarded!
​
Halloween
Pet
Lawn & Garden
Truck & Automotive
Sporting Goods
Horse
Farm & Ranch
Clothing
Livestock
Pet & Animal Pharmacy
Tools
Poultry
Fencing & Gates
Home Improvement
Outdoor Living
Heating & Cooling
Menu

Search

Home

Sign In

Cart
0.0
(0)
0.0 out of 5 stars.
A woman outside with a dog
A woman outside with a dog
  1. Home
  2. /
  3. Tools
  4. /
  5. Air Compressors & Air Tools
  6. /
  7. Air Compressor Accessories & Parts
  8. /
  9. Filters, Regulators & Lubricators
  10. /

  11. ARO 3000 Series Air Line Compressor Regulator, 3/4 in. NPT, Knob

  1. Home
  2. /
  4. /
  5. Filters, Regulators & Lubricators

ARO 3000 Series Air Line Compressor Regulator, 3/4 in. NPT, Knob

Shop all ARO

  • Limited Time Deal

ARO 3000 Series Air Line Compressor Regulator, 3/4 in. NPT, Knob

Item # 191484399

ARO ARO 3000 Series Air Line Compressor Regulator, 3/4 in. NPT, Knob
ARO ARO 3000 Series Air Line Compressor Regulator, 3/4 in. NPT, Knob
$15299

Sale

Was$16999

Save$1700(10%)

Add this item to unlock free delivery!

Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

Shop all ARO

  • Limited Time Deal

ARO 3000 Series Air Line Compressor Regulator, 3/4 in. NPT, Knob

Item # 191484399

ARO ARO 3000 Series Air Line Compressor Regulator, 3/4 in. NPT, Knob
ARO ARO 3000 Series Air Line Compressor Regulator, 3/4 in. NPT, Knob

$15299

Sale

Was$16999

Save$1700(10%)

financeCard Logo
New Cardmembers earn a $20 Reward‡ with qualifying purchase of $20 or more plus earn 5% in Rewards+ on this purchase. Valid through 8/9/26.

Add this item to unlock free delivery!

This item is available online only

Delivery to

Free standard delivery on online footwear & Clothing purchases of $49 and over.

​
Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

Use the ARO 3000 Series Air Line Compressor Regulator to deliver controlled, consistent air pressure as required. Ideal for specific pneumatic equipment connected to the air system, this air line compressor regulator has the power to complete a variety of repair projects efficiently and conveniently. The air line regulator is offered with a standard adjustment range of 0-140 PSIG (0-9.6 BarG).

For additional information on this product, please see the Product Documents section for all downloadable user manuals, installation guides, brochures and warranty statements.

  • Offered with a standard air line regulator adjustment range of 0-140 PSIG (0-9.6 BarG)
  • Delivers controlled, consistent air pressure as required
  • Ideal for specific pneumatic equipment connected to the air system
  • Air line compressor regulator is equipped with a 3/4 in. NPT port
  • Relieving design
  • Standard knob control
BrandARO
Country of OriginImported
CompatibilityUniversal
Inlet Size3/4 in.
Inlet TypeNPT
Package Quantity1
Product Height4.6 in.
Product Length7.7 in.
Product Weight3.7 lb.
Product Width4.2 in.
Manufacturer Part NumberR37451-300

Have a question?
Start typing your question and we'll check if it was already asked and answered.
1 - 1 of 1 Question
Sort by
Newest questions

Q: Where is the pressure gauge on this regulator? Is it a separate purchase or is the pitcher just not showing the pressure gauge?

4 months ago
1 Answer
  • A: Hi Neighbor- For additional information on this product, please see the Product Documents section for all downloadable user manuals, installation guides, brochures and warranty statements.
    4 months ago
    Helpful?

Q&As

Have a question?
Start typing your question and we'll check if it was already asked and answered.
1 - 1 of 1 Question
Sort by
Newest questions

Q: Where is the pressure gauge on this regulator? Is it a separate purchase or is the pitcher just not showing the pressure gauge?

4 months ago
1 Answer
  • A: Hi Neighbor- For additional information on this product, please see the Product Documents section for all downloadable user manuals, installation guides, brochures and warranty statements.
    4 months ago
    Helpful?

Similar Items

  1. ARO 3000 Series Air Line Compressor Regulator, 1 in. NPT, Knob
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 3000 Series Air Line Compressor Regulator, 1 in. NPT, Knob

    $161.99
    Was $179.99Save $18.00
  2. ARO 3000 Series Air Line Compressor Regulator, 3/4 in. NPT, 0-140 PSIG, Knob
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 3000 Series Air Line Compressor Regulator, 3/4 in. NPT, 0-140 PSIG, Knob

    $152.99
    Was $169.99Save $17.00
  3. ARO 1500 Series Air Line Compressor Regulator, 1/4 in. NPT, Knob
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1500 Series Air Line Compressor Regulator, 1/4 in. NPT, Knob

    $62.99
    Was $69.99Save $7.00
  4. ARO 2000 Series Air Line Compressor Regulator, 3/8 in. NPT, Knob, Relieving, R37331-400
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 2000 Series Air Line Compressor Regulator, 3/8 in. NPT, Knob, Relieving, R37331-400

    $76.49
    Was $84.99Save $8.50
  5. ARO 2000 Series Air Line Compressor Regulator, 3/8 in. NPT, Knob, Relieving, R37331-300
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 2000 Series Air Line Compressor Regulator, 3/8 in. NPT, Knob, Relieving, R37331-300

    $71.99
    Was $79.99Save $8.00
  6. ARO 3000 Series Air Line Compressor Regulator, 1 in. NPT, 0-140 PSIG, Knob, Non-Relieving
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 3000 Series Air Line Compressor Regulator, 1 in. NPT, 0-140 PSIG, Knob, Non-Relieving

    $161.99
    Was $179.99Save $18.00
  7. ARO 1000 Series Air Line Compressor Regulator, 1/4 in. NPT, Knob, Non-Relieving
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1000 Series Air Line Compressor Regulator, 1/4 in. NPT, Knob, Non-Relieving

    $35.99
    Was $39.99Save $4.00
  8. ARO 1000 Series Air Line Compressor Regulator, 1/4 in. NPT, Knob, Relieving
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1000 Series Air Line Compressor Regulator, 1/4 in. NPT, Knob, Relieving

    $31.49
    Was $34.99Save $3.50
  9. ARO 3000 Series Air Line Compressor Regulator, 1 in. NPT, 0-140 PSIG, Knob, Relieving, R37461-100
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 3000 Series Air Line Compressor Regulator, 1 in. NPT, 0-140 PSIG, Knob, Relieving, R37461-100

    $152.99
    Was $169.99Save $17.00
  10. ARO 1000 Series Air Line Compressor Regulator, 1/8 in. NPT, Knob, Non-Relieving
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1000 Series Air Line Compressor Regulator, 1/8 in. NPT, Knob, Non-Relieving

    $35.99
    Was $39.99Save $4.00
  11. ARO 1000 Series Air Line Compressor Regulator, 1/8 in. NPT, Knob, Relieving, R37111-200
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1000 Series Air Line Compressor Regulator, 1/8 in. NPT, Knob, Relieving, R37111-200

    $26.99
    Was $29.99Save $3.00
  12. ARO 2000 Series Air Line Compressor Regulator, 1/2 in. NPT, Knob, Relieving, R37341-200
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 2000 Series Air Line Compressor Regulator, 1/2 in. NPT, Knob, Relieving, R37341-200

    $71.99
    Was $79.99Save $8.00

Items You May Like

  1. ARO 3/4 in. NPT 3000 Series Air Compressor Regulator, Standard Knob Control, 0 to 140 PSI
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 3/4 in. NPT 3000 Series Air Compressor Regulator, Standard Knob Control, 0 to 140 PSI

    $152.99
    Was $169.99Save $17.00
  2. ARO 1/2 in. Regulator
    4.2 out of 5 stars with 51 reviews
    4.2 (51)

    ARO 1/2 in. Regulator

    $114.99
  3. Milton 3/8 in. FNPT P-Style Steel Plug, 2 pc.
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Milton 3/8 in. FNPT P-Style Steel Plug, 2 pc.

    $7.99
  4. ARO 3/4 in. NPT 3000 Series Compressed Air Filter, Manual Drain, 5 Microns
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 3/4 in. NPT 3000 Series Compressed Air Filter, Manual Drain, 5 Microns

    $179.99
    Was $199.99Save $20.00
  5. ARO 1500 Series Air Line Compressor Regulator, 0-140 PSIG, Non-Relieving
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1500 Series Air Line Compressor Regulator, 0-140 PSIG, Non-Relieving

    $62.99
    Was $69.99Save $7.00
  6. ARO 1500 Series Piggyback Air Compressor Filter/Regulator, Poly Bowl
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1500 Series Piggyback Air Compressor Filter/Regulator, Poly Bowl

    $179.99
    Was $199.99Save $20.00
  7. ARO Super-Duty Series Air Line Compressor Regulator, 1 in., 0-140 PSIG, R37561-300
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO Super-Duty Series Air Line Compressor Regulator, 1 in., 0-140 PSIG, R37561-300

    $179.99
    Was $199.99Save $20.00
  8. ARO 3/4 in. NPT 2000 Series Combination Air Compressor Filter, Regulator & Lubricator with Gauge, Auto Drain, 2 pc.
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 3/4 in. NPT 2000 Series Combination Air Compressor Filter, Regulator & Lubricator with Gauge, Auto Drain, 2 pc.

    $323.99
    Was $359.99Save $36.00
  9. ARO 1000 Series Air Line Compressor Regulator, 1/4 in. NPT, 0-140 PSIG, Knob, Non-Relieving
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1000 Series Air Line Compressor Regulator, 1/4 in. NPT, 0-140 PSIG, Knob, Non-Relieving

    $35.99
    Was $39.99Save $4.00
  10. Milton 3/8 in. x 3 ft. Leader Hose, 3/8 in. NPT
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Milton 3/8 in. x 3 ft. Leader Hose, 3/8 in. NPT

    $26.99
    Was $29.99Save $3.00
  11. Milton 3/8 in. FNPT M-Style Female Brass Coupler
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Milton 3/8 in. FNPT M-Style Female Brass Coupler

    $8.99
  12. Ingersoll Rand 7 CFM Non-Cycling Refrigerated Dryer DA12INA100
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Ingersoll Rand 7 CFM Non-Cycling Refrigerated Dryer DA12INA100

    $1,174.49
    Was $1,304.99Save $130.50

Customers Also Bought

  1. ARO 1/4 in. Precision Air Compressor Regulator
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1/4 in. Precision Air Compressor Regulator

    $233.99
    Was $259.99Save $26.00
  2. ARO Super-Duty Series Air Pressure Regulator, 0-140 PSIG
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO Super-Duty Series Air Pressure Regulator, 0-140 PSIG

    $341.99
    Was $379.99Save $38.00
  3. ARO 3/4 in. 400 PSI Precision Air Compressor Regulator
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 3/4 in. 400 PSI Precision Air Compressor Regulator

    $539.99
    Was $599.99Save $60.00
  4. ARO 1000 Series Air Line Compressor Regulator, 1/8 in. NPT, Knob, Relieving, R37111-400
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1000 Series Air Line Compressor Regulator, 1/8 in. NPT, Knob, Relieving, R37111-400

    $26.99
    Was $29.99Save $3.00
  5. ARO 1 in. NPT 3000 Series Air Line Compressor Regulator with Gauge, 0-140 PSIG, Knob
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1 in. NPT 3000 Series Air Line Compressor Regulator with Gauge, 0-140 PSIG, Knob

    $179.99
    Was $199.99Save $20.00
  6. ARO 1/4 in. NPT 1000 Series Relieving Air Regulator, Standard Knob Control, 0 to 60 PSI
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1/4 in. NPT 1000 Series Relieving Air Regulator, Standard Knob Control, 0 to 60 PSI

    $31.49
    Was $34.99Save $3.50
  7. ARO Precision Air Compressor Regulator, 3/4 in.
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO Precision Air Compressor Regulator, 3/4 in.

    $539.99
    Was $599.99Save $60.00
  8. ARO 1 in. NPT 3000 Series Standard Air Compressor Filter, Auto Drain, Metal Bowl
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1 in. NPT 3000 Series Standard Air Compressor Filter, Auto Drain, Metal Bowl

    $233.99
    Was $259.99Save $26.00
  9. ARO 1/2 in. Filter and Regulator
    4.2 out of 5 stars with 133 reviews
    4.2 (133)

    ARO 1/2 in. Filter and Regulator

    $164.99
  10. ARO 1000 Series Piggyback Air Compressor Filter/Regulator, Poly Bowl
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1000 Series Piggyback Air Compressor Filter/Regulator, Poly Bowl

    $71.99
    Was $79.99Save $8.00
  11. Top Rated
    ARO 1 in. NPT 3000 Series Standard Air Compressor Filter, Manual Drain, Metal Bowl
    5.0 out of 5 stars with 1 reviews
    5.0 (1)

    ARO 1 in. NPT 3000 Series Standard Air Compressor Filter, Manual Drain, Metal Bowl

    $215.99
    Was $239.99Save $24.00
  12. ARO 1500 Series Air Line Compressor Regulator with Gauge, 3/8 in. NPT, 0-140 PSIG, Knob
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    ARO 1500 Series Air Line Compressor Regulator with Gauge, 3/8 in. NPT, 0-140 PSIG, Knob

    $71.99
    Was $79.99Save $8.00

Reviews

Review this Product

Select to rate the item with 1 star. This action will open submission form.
Select to rate the item with 2 stars. This action will open submission form.
Select to rate the item with 3 stars. This action will open submission form.
Select to rate the item with 4 stars. This action will open submission form.
Select to rate the item with 5 stars. This action will open submission form.
Be the first to review this product
Get the top deals, latest trends and more
Sign up for emails from Tractor Supply today.
First Name*
Last Name*
Email*

Customer Support

  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  

    (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

About Us

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

Work With Us

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

Neighbor's Club

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

Credit Center

  • TSC Credit Card

  • Klarna

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More
  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

  • TSC Credit Card

  • Klarna

Connect & Share with the Tractor Supply Community.

Shop on the go with the Tractor Supply App

Learn More
  • Privacy policy
  • Your Privacy Choices
  • Terms and Conditions
  • California Transparency Act
  • Legal Notices
  • Accessibility
  • Responsible Disclosure Statement
  • Surprise (Balance) Medical Billing Disclosure
  • Transparency in Coverage
  • Human Rights Policy
  • Vendor Code of Conduct
  • California Notice of Collection
  • Privacy Requests

© 2026, Tractor Supply Co. All Rights Reserved.