What size fitting does the hose barb have?

The same standard size used for all oxygen breathing equipment.

Does this read 1/4 1/32 in LPM?

I think the lowest flow rate is 0.5 lpm.

can a humidifier be connected ?

https://www.amazon.com/KANGneei-Oxygen-Bubbler-Bottle-Concentrator/dp/B094DP455X/ref=sr_1_24?crid=2TQ7NTTKZ3PJB&dchild=1&keywords=oxygen+humidifier+bottle&qid=1621964450&sprefix=oxygen+hu%2Caps%2C183&sr=8-24

Ot says the flow rate can be adjusted in 12 steps from 0. Does it have steps less than 1 Lpm such as .5 .25 etc? Thanks

I think so . if you need .5 you likely do not need O2.

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Ever Ready First Aid Oxygen Regulator CGA-870 Gauge Flow Rate with Wrench Key - 0-15LPM

Ever Ready First Aid Oxygen Regulator CGA-870 Gauge Flow Rate with Wrench Key - 0-15LPM

Product ID: 99516844

Details

Brand
Ever Ready Aid
Material
Aluminum Brass
Number of Items
1
Thread Type
Cga-870
Unit Count
1 Count

📏Adjustable flow rate 0-15 LPM with 12 presets

🔧Includes durable oxygen key with chain

⚙️CGA-870 fitting for universal tank compatibility

218 zł

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Description

💨 Stay Ready, Stay Ahead: Oxygen Flow Mastery in Your Hands

READY WHEN YOU ARE - Comes with a sturdy oxygen key attached by chain for quick, hassle-free cylinder access.
LIGHTWEIGHT COMPACT - Crafted from anodized aluminum and brass, measuring just 4.5" x 2.5" x 1.25" for effortless portability.
PRECISION FLOW CONTROL - Easily dial through 12 preset flow rates from 0 to 15 LPM for tailored oxygen delivery.
UNIVERSAL COMPATIBILITY - Fits any oxygen tank with CGA-870 style fitting, ensuring seamless integration.
SECURE LEAK FREE CONNECTION - Single barb outlet design guarantees a tight fit with tubing to prevent leaks and detachment.

The Ever Ready First Aid Oxygen Regulator CGA-870 is a compact, lightweight, and durable oxygen flow regulator designed for tanks up to 2000 PSI. Featuring 12 adjustable flow settings from 0 to 15 LPM, a secure single barb outlet, and an included oxygen key with chain, it ensures precise, reliable oxygen delivery and quick cylinder access—perfect for professionals and daily users who demand readiness and performance.

Specifications

ASIN	B07MFR94DP
Best Sellers Rank	#142,492 in Health & Household ( See Top 100 in Health & Household ) #225 in Oxygen Accessories
Brand	Ever Ready First Aid
Brand Name	Ever Ready First Aid
Customer Reviews	4.6 out of 5 stars 1,697 Reviews
Manufacturer	Ever Ready First Aid
Material	Aluminum, Brass
Material Type	Aluminum, Brass
Model	BD16549
Number of Items	1
Part Number	BD16549
Thread Style	Cga-870
Thread Type	Cga-870
UPC	843484102002
Unit Count	1 Count

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TrustScore 4.5 | 7,300+ reviews

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218 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered 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 Poland.

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