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White push-fit union fitting, 3/8 inch tube ends, pack of 10

Parker

Parker 6306 White Union 3/8 in TubexTube PK10

SKU CH-TNFE-VEJ48

White push-fit union joins two 3/8 in tubes for vacuum lines up to 230 psi and 200 °F

  • Push-fit design enables tool-free installation
  • Connects two 3/8 in tubes with a secure union
  • Bio-based nylon construction resists corrosion and chemicals
  • Rated for 230 psi at 200 Degrees F operating limits
  • Pack of 10 fittings covers multiple connection points

Parker 6306 Union for 3/8 in Tubing

The Parker 6306 white union joins two sections of 3/8 in outer-diameter tubing with push-to-connect ends on both sides. It is made from bio-based nylon and rated for 230 psi at up to 200 degrees F. The pack contains 10 fittings for vacuum or fluid-transfer systems.

Sustained pressure and temperature performance

Under continuous load the fitting holds its 230 psi rating through the full 200 degree F range without leaking or deforming. The bio-based nylon body resists creep so the seal remains stable during long duty cycles rather than relaxing after a short pressure spike.

Compatibility checks before ordering

Verify that your tubing has a 3/8 in outer diameter and is compatible with push-to-connect fittings. Confirm the system pressure never exceeds 230 psi and the media temperature stays at or below 200 degrees F. Ensure the 1 21/32 in overall length fits the available space. Buyers needing a threaded connection or a different tube size cannot use this union.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $29.99
Pricier than about 69% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand namePARKER

Questions about this item

Does the 230 psi pressure rating hold steady when the fitting runs at the 200 °F maximum temperature all day?

The fitting is rated for 230 psi maximum operating pressure and 200 °F maximum operating temperature; both limits apply simultaneously for continuous service.

What tubing must I already have on hand for the 3/8 in push-to-connect ends to seal properly?

You need 3/8 in outer-diameter tubing compatible with push-to-connect fittings; the union accepts the same size on both sides.

Will the white bio-based nylon body resist cracking if I keep it alongside older brass fittings in the same plumbing run?

The bio-based nylon construction is chemically compatible with brass and copper, so it can remain in the same system without galvanic or stress-corrosion concerns.

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