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Five white push-fit nylon adapter unions with 3/8 and 1/2 inch ends

Parker

Parker 6306 60 62WP2 Adapter Union White Pk5

SKU CH-03PB-JF95T

Connects 3/8 in and 1/2 in tubing with push-to-connect ends, rated to 230 psi and 200 Degrees F

  • White nylon adapter resists corrosion
  • Push-to-connect ends join 3/8 in and 1/2 in tubing without tools
  • Rated for 230 psi and 200 °F vacuum service
  • Bio-based nylon construction reduces environmental impact
  • Pack of five fittings covers multiple connection points

Push-Fit Adapter for Vacuum Lines

This Parker 6306 push-fit adapter connects 3/8-inch and 1/2-inch tubing in vacuum applications. The bio-based nylon body is supplied in a pack of five white fittings. Each union measures 2 3/16 inches overall and is rated for 230 psi at 200 degrees Fahrenheit. No thread sealant is included or required for the push-to-connect ends.

3/8 to 1/2 Inch Tube Transition

The critical specification is the dissimilar tube diameters on each end: Side A accepts 3/8-inch outer diameter tubing while Side B accepts 1/2-inch outer diameter tubing. Both connections use push-to-connect sealing without tools. The fitting handles vacuum duty up to the stated pressure and temperature limits. Verify both tube sizes before ordering.

For Vacuum Systems Joining Two Tube Sizes

This union suits installers joining 3/8-inch and 1/2-inch lines in vacuum circuits where push-fit convenience is preferred. It is not for plumbing that requires threaded joints or compression fittings. Buyers needing same-size connections or a different material should look at other configurations.

How it compares

Measured against everything we stock in Faucet Valves & Replacement Parts, at today’s prices. Recalculated every night.

Price $18.99
Cheaper than about 85% of the 1,132 comparable items (median $54.99).

Specifications

Product
Brand namePARKER
Product typeOther

Questions about this item

How does the 230 psi pressure rating affect daily use in a vacuum line?

The 230 psi maximum operating pressure means the adapter union will hold vacuum reliably in typical residential and light-commercial plumbing without risk of blow-off.

What does the push-to-connect interface on both ends mean for tube compatibility?

Both ends accept tubing by simple insertion — one side takes 3/8 in outside-diameter tube, the other 1/2 in — and the internal collet grips automatically without tools.

What clearance is needed to fit the 2 3/16 in overall length into a cabinet?

The union measures 2 3/16 in end-to-end, so allow at least that much straight run plus a little extra for the tubing to enter each push-fit port without sharp bends.

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