QestPEX hot/cold tubing is offered in the following nominal copper tube sizes:

General Information - QESTPEX Hot/Cold Tubing - SDR 9 ASTM-F-876, F-877

QEST DESIGNATION

NOM. SIZE (CTS)

AVG. O.D.

AVG. I.D.

MIN. WALL

WT. PER 100 FT.

Q1P

1/4

0.375

0.227

0.070

3.06

Q2P

3/8

0.500

0.352

0.070

4.19

Q3P

1/2

0.625

0.477

0.070

5.40

Q4P

3/4

0.875

0.673

0.097

10.20

Q5P

1

1.125

0.865

0.125

16.62

 

bullet.gif (542 bytes) For traditional plumbing applications that utilize centrally located hot & cold water mains, QestPEX pipe sizing (OD’s) should be equal to that of copper.
bullet.gif (542 bytes) Manifold pipe sizing allows for the use of 3/8" tubing for shorter runs (80ft or less).  Please check local building codes.  For more details view the On-Line Installation Guide.