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Parker

Parker 6306 08 60WP2 White Push-Fit Adapter Union PK10

SKU CH-QFPJ-AM9EE

Push-fit adapter union joins 5/16 in and 3/8 in tubes, rated to 230 psi and 200 °F, white bio-based nylon, pack of 10

  • TypeOther
  • Push-fit connections simplify installation with no tools required
  • White bio-based nylon body resists corrosion in wet environments
  • 5/16 in to 3/8 in push-to-connect ends join different tube sizes
  • Rated for 230 psi and 200 °F maximum operating conditions
  • Pack of ten fittings supports multiple connection points

Parker 6306 Push-Fit Adapter Union

This Parker 6306 adapter union connects 5/16 inch and 3/8 inch tubing using push-to-connect ends on both sides. The white bio-based nylon fitting is rated for 230 psi maximum operating pressure and 200 degrees F maximum operating temperature. It comes in a pack of ten pieces for plumbing or vacuum applications.

5/16 in to 3/8 in Push-to-Connect Transition

The single specification that decides fit is the tube outer diameter combination: side A accepts 5/16 inch tubing while side B accepts 3/8 inch tubing. Both ends use push-to-connect style connections with no pre-applied thread sealant included. The overall length measures 1 21/32 inches installed.

Suits Installers Joining Different Tube Sizes

This union suits installers who need a straight transition between 5/16 inch and 3/8 inch lines in vacuum or fluid systems rated within 230 psi and 200 degrees F. Buyers who require threaded connections, larger diameters, or a different material should look at something else.

Highlights

  • Push-fit connections simplify installation with no tools required
  • White bio-based nylon body resists corrosion in wet environments
  • 5/16 in to 3/8 in push-to-connect ends join different tube sizes
  • Rated for 230 psi and 200 °F maximum operating conditions
  • Pack of ten fittings supports multiple connection points

Specifications

BrandPARKER
TypeOther

Questions about this item

How does the 230 psi maximum operating pressure translate to everyday vacuum-line use?

The 230 psi rating means the union will hold well above typical residential vacuum pressures, so normal suction loads will not stress the fitting.

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

Both ends accept tubing by simply pushing it in — one side takes 5/16 in outside-diameter tube, the other takes 3/8 in outside-diameter tube.

What clearance does the 1 21/32 in overall length require inside a cabinet?

The union itself is 1 21/32 in long, so allow at least that much straight run plus room for the tubing to enter each push-fit port without sharp bends.

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