What is the max psi on the input side

The instructions just say max. pressure 145 lbs. with no mention of input or out put. I assumed input but after reading the add I see it is out put. So I don't think I can help you. I would try to check directly with the mfg.

Is it supposed to hiss (leak air) when it is set to a pressure lower than the tank?

As you adjust the pressure downward, the regulator will let a little wisp of air out as you turn the knob. However, it should not leak air at any other time. If yours is leaking continuously, something is wrong with it.I should add that William R and I both assume the hissing is "leakage out" from the regulator, such as around the knob. The regulator will 'leak through' to maintain the set pressure downstream. If your downstream system has a leak, the regulator will allow air through to make up for the leakage. This would be normal operation.

When looking down at the top of the knob, what side is the gauge on? And, does it have an L or R stamped on it?

It should have arrows or in/out to indicate the direction of flow for your connections so base your fittings based on that. with the supplied bracket and the right fittings (1/8" npt nipple and 1/8" npt female/female elbow), you can have the gauge face out, up, down, left or right.

Would the regulator fit on a 24 oz CO2 bottle with a pin valve

That I do not know, But these type of gauges and regulators are meant to be used with compressed air usually no more than 250 psi. And to the best of my knowledge, compressed gases such as C02 is normally around 3000 psi. To get a definite answer, I would consult with the manufacturer of the product.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Primefit R1401G Mini Air Regulator with steel-Protected Gauge, 60-Scfm At 100-Psi, 1/4" Npt

Product ID: 267721395

Details

Brand
Primefit
Item Weight
6.4 ounces
Item dimensions L x W x H
3.5 x 1.5 x
Material
Aluminum
Thread Type
Npt

🔒Locking regulator knob

🔧60 SCFM max flow

🛡️Steel-protected gauge

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 35.82

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

Description

🔧 Lock in your airflow, unlock your productivity!

TRUSTED LEGACY - From Primefit, a pneumatic pioneer since 1976, ensuring quality and reliability.
RUGGED DURABILITY - Steel-protected gauge built to survive tough jobsite abuse and portable compressor use.
COMPACT VERSATILE - Mini size with removable knob fits tight spaces without compromising power.
EFFORTLESS INSTALLATION - Includes mounting brackets and 1/4" NPT threading for seamless setup.
PRECISION PRESSURE CONTROL - Lock and maintain exact air pressure from 1 to 145 PSI for flawless tool performance.

The Primefit R1401G Mini Air Regulator delivers precise air pressure control up to 145 PSI with a robust steel-protected gauge and locking knob. Compact and durable, it’s designed for both portable and stationary compressors, backed by a 1-year limited warranty and decades of Primefit’s pneumatic expertise.

Specifications

ASIN	B00IDCYKEY
Best Sellers Rank	#74,611 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #180 in Air Compressor Accessories
Brand	Primefit
Brand Name	Primefit
Customer Reviews	4.4 out of 5 stars 814 Reviews
Global Trade Identification Number	00816227016164
Included Components	Air Regulator
Item Dimensions	8.9 x 3.8 x 8.9 centimeters
Item Type Name	Mini Air Regulator
Item Weight	0.4 Pounds
Item dimensions L x W x H	8.9 x 3.8 x 8.9 centimeters
Item weight	0.4 Pounds
Manufacturer	Primefit
Material	Alloy Steel
Material Type	Alloy Steel
Thread type	1/4" Npt
UPC	816227016164 787721681359
Unit Count	1 Count

Reviews

R**L

Works well for such a small size.

18.03.2021

D**D

Top knob can be removed for installation in tight spaces.

14.04.2025

D**N

Excellent Product that I very satisfied with

7.05.2023

D**E

Pressure valve for Craftsman

20.05.2024

A**R

Great product , Great Price

6.07.2025

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 35.82

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews