Boshart PQC-C0604 3/8" OD x 1/...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2.13
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Boshart PQC-C0604 3/8" OD x 1/4" OD Plastic Quick Connect Coupling

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Model: PQC-C0604

In Stock (leaves warehouse same day if ordered before 3pm ET)

$2.13
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Boshart PQC-C0604 3/8" OD x 1/4" OD Plastic Quick Connect Coupling

The Boshart PQC-C0604 is a plastic quick connect coupling sized 3/8" OD x 1/4" OD, built for point-of-use (POU) installations, water dispensing lines, filtering systems, food and beverage service, and agricultural or irrigation tubing runs. This push-fit fitting installs without crimp tools, adhesives, or clamps, and it can be removed and reused without damaging the tubing it's connected to — a real time-saver for techs working behind fixtures, under sinks, or in the field. It is compatible with PVC, Polyethylene, PEX, and Copper tubing, making it a versatile stock item for plumbers who service mixed piping systems.

Key Features

  • Trade Size: 3/8" OD x 1/4" OD coupling for connecting two different tubing outer diameters in POU and filtration setups.
  • Tool-Free Push-Fit Connection: No crimp tools, adhesives, or clamps required — simply push the tubing into the fitting for a secure seal.
  • Removable and Reusable: Fittings can be disconnected and reused without damaging the tubing, reducing waste on service calls and re-work.
  • Broad Tubing Compatibility: Works on PVC, Polyethylene, PEX, and Copper tubing, giving contractors one fitting for multiple pipe materials.
  • Gripper Ring: Stainless steel gripper ring holds tubing securely in place once inserted.
  • O-Ring Seal: NBR O-ring provides the sealing surface against the tubing wall for leak-tight performance.
  • Chemical Resistance: Excellent resistance to most organic compounds, industrial chemicals, and gases, suiting it to filtration and dispensing applications beyond potable water.
  • Tube Support Recommended: Tube supports (sold separately) are recommended when using soft tubing or with hot liquids to maintain a proper seal.

Technical Specifications

  • Country of Origin: South Korea
  • Packaging: 10 ea

Typical Applications

  • Point-of-Use (POU) Water Installations
  • Water Dispensing Systems
  • Filtration System Assembly
  • Food and Beverage Service Equipment
  • Agricultural and Irrigation Tubing Runs

Why Boshart?

Boshart's PQC series plastic quick connect fittings pair a stainless steel gripper ring with an NBR O-ring seal for a dependable, reusable connection across PVC, Polyethylene, PEX, and Copper tubing. For plumbers and installers who need a fast, tool-free coupling for POU, filtration, or dispensing lines, this fitting cuts install time without sacrificing a secure seal.

Manufacturer Resources

Product Specs

list_batch:
BOS-20260923
Product Type:
Coupling
Connection Type:
Push-Fit
Department:
Plumbing
Product Subgroup:
Couplings
Product Material:
Plastic
Product Size:
3/8"
Product Group:
Plumbing Fittings
Product Length:
0.7 in
Product Width:
0.7 in
Product Height:
1.6 in
Product Weight:
0.02 lb

Boshart PQC-C0604 – Frequently Asked Questions

1) Will the Boshart PQC-C0604 connect 3/8 inch tubing to 1/4 inch tubing?
That is exactly what it does. The PQC-C0604 is a reducing coupling with a 3/8 inch OD port on one end and a 1/4 inch OD port on the other, so it steps a 3/8 inch supply line down to 1/4 inch tubing running to a dispenser, filter head, or icemaker. Both ends are push-fit, so nothing is crimped or glued.
2) Can I use a push-fit quick connect coupling on copper tubing, or is it only for plastic tube?
The Boshart PQC-C0604 is rated for PVC, polyethylene, PEX and copper tubing, so copper is fine as long as the OD matches the port (3/8 inch on one side, 1/4 inch on the other) and the tube end is cut square and clean. The fitting body itself is plastic; the grip comes from a stainless steel gripper ring and the seal from an NBR O-ring pressing on the tube wall.
3) Do I need a tube insert or support with this quick connect fitting?
With soft tubing, or where the line carries hot liquid, tube supports are recommended to keep the tube round so the O-ring seals properly. They are sold separately, so order them alongside the coupling if you are connecting soft poly or vinyl tube. On rigid tube such as copper or PEX at normal temperatures the insert is not called for.
4) Can a push-fit coupling be taken apart and reused, or is it a one-time connection?
The PQC series couplings release and reconnect without damaging the tube, so the same fitting can be pulled for a filter change or a re-route and put back into service. That is the practical reason techs carry them for under-sink and behind-fixture work where there is no room to swing a crimp tool.
5) Is this fitting suitable for a drinking water filter or beverage dispenser line, or just general plumbing?
Point-of-use water installations, water dispensing systems, filtration assemblies, and food and beverage service equipment are the stated applications for the PQC-C0604, along with agricultural and irrigation tubing runs. It also has good resistance to most organic compounds, industrial chemicals and gases, which is why it gets used on filtration and dispensing lines rather than potable water only.
6) Should I use a push-fit coupling or a compression fitting on a 1/4 inch water line?
Pick the push-fit if you want no tools and the ability to disconnect later, which is the case on filter cartridges, RO manifolds and dispenser lines that get serviced. A compression or crimped connection makes more sense where the joint is buried, permanent, or in a wall cavity you will not reopen. The PQC-C0604 needs no crimp tool, adhesive or clamp to make up the joint.
7) How many Boshart PQC-C0604 couplings come in a pack?
The PQC-C0604 is packaged 10 each, which suits a service van or a filtration shop building multiple assemblies. Manufacturer part number is PQC-C0604 and the fittings are made in South Korea.
How fast can I get the Boshart PQC-C0604 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Boshart PQC-C0604 come with a warranty?
Absolutely. The Boshart PQC-C0604 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Boshart PQC-C0604?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Boshart PQC-C0604 from ZenSupply?
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