This is a quick disconnect fitting to hose barb. Therefore it will attach to flexible tubing on the hose barb side and another mating quick disconnect fitting on the adapter side.

Can no longer "quick" connect after about 20 disconnect/connect cycles. Must use plyers to get it apart. Any ideas?

Try a touch of water based lubricant, works fine

What does 3/8" flow size, 1/2" id mean? which is it, 3/8 or 1/2?

The 1/2" ID indicates the hose barb size which accepts soft tubing with a 1/2" tubing inner diameter. The flow size indicates the diameter of the inner flow path and the mating side of the connector must have the same flow path size for them to connect properly.

going to use white silicone tubing with these. which hose clamp is recommended?

I picked up a couple from a Home Brewing supply store, that have worked perfectly. Don’t recall the exact size, but I just took the pieces to the store and they had a perfect fit. The have thumb screws, so easy on, easy off.

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CPC (Colder) HFCD16812 Valved Bulkhead Panel Mount Hose Barb, PP, 3/8" Flow Size, 1/2" ID

Product ID: 76225358

Details

Brand
Colder
Item Weight
0.04 Pounds
Manufacturer
Cole-Parmer
Material
Polypropylene
Nominal Wall Thickness
0.04 inches
Number of Packs
1

📏Compact 3.5" x 1.9" x 1.5" dimensions

🔩Durable polypropylene build

⚙️3/8" precise flow size

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€ 63.89

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Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Elevate your industrial flow game with precision and durability!

SPACE SAVVY DESIGN - Compact bulkhead panel mount fits seamlessly into tight industrial spaces
PRECISION FLOW CONTROL - 3/8" flow size ensures optimal fluid dynamics for your industrial setup
HIGHLY RATED RELIABILITY - 4.2-star average from 146 users confirms dependable performance
TRUSTED AMERICAN CRAFTSMANSHIP - Proudly made in the USA by Cole-Parmer, a leader in industrial fittings
ROBUST POLYPROPYLENE CONSTRUCTION - Engineered from high-grade PP for chemical resistance and long-lasting durability

The CPC (Colder) HFCD16812 Valved Bulkhead Panel Mount Hose Barb is a compact, 3/8" flow size polypropylene fitting designed for industrial pneumatic hose applications. Manufactured by Cole-Parmer in the USA, it offers chemical resistance, durability, and reliable performance, backed by strong customer ratings.

Specifications

ASIN	B003LY7GWC
Best Sellers Rank	#70,654 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #74 in Compression Bulkhead Fittings
Brand Name	Colder
Customer Reviews	4.2 4.2 out of 5 stars (146)
Item Weight	0.04 Pounds
Manufacturer	Cole-Parmer
Material Type	Polypropylene (PP)
Nominal Wall Thickness	0.04 inches
Outside Diameter	0.38 Inches
UPC	696504955504
Unit Count	1.0 Count

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