Type K, L, M and DWV copper tubes are designated in ASTM standard sizes. Copper pipe of these types has an actual outside diameter that 1/8 inch larger than norminal size. For example, 1/4 norminal tyoe K pipe's actual O.D. is 3/8 inches (1/4+1/8). For same norminal size, type K copper pipe's wall thickness is larger than type L copper pipe, and type L copper pipe's wall thickness is thicker than type M copper pipe.

Type L Copper Tube Applications

  • Underground Water Service -- Type L soft tubes (coils)
  • Heating -- For radiant panel and hydronic heating and for snow melting systems, use type L soft temper (coils) copper tube. For condensate return lines, type L is ok.
  • Fuel Oil, L.P. and Natural Gas Services -- Type L copper tubes.
  • Nonflammable Medical Gas System -- Medical gas tube type L or K
  • Air Conditioning and Refrigeration Systems -- Use type L copper tube as specified.
  • Ground Source Heat Pump Systems -- Type L (coils)
  • Fire Sprinkler Systems -- Type L is recommended.
  • Compress Air -- Use type L copper tube as per internal working pressures required.
  • Low Temperature Applications 

O60 Copper Tube Size List

Basic Info O.D. inches O.D. mm W.T. inches W.T. mm Weight Application & Form Standard

Norminal Size: 1

O60

Item No.: B88L29DP

1.125in 28.580mm 0.050in 1.270mm 0.974kg/m

Plumbing Copper Tube

LWC

ASTM B88

Norminal Size: 3/4

O60

Item No.: B88L22DP

0.875in 22.230mm 0.045in 1.143mm 0.677kg/m

Plumbing Copper Tube

LWC

ASTM B88

Norminal Size: 5/8

O60

Item No.: B88L19DP

0.750in 19.050mm 0.042in 1.067mm 0.539kg/m

Plumbing Copper Tube

LWC

ASTM B88

Norminal Size: 1/2

O60

Item No.: B88L16DP

0.625in 15.880mm 0.040in 1.016mm 0.424kg/m

Plumbing Copper Tube

LWC

ASTM B88

Norminal Size: 3/8

O60

Item No.: B88L13DP

0.500in 12.700mm 0.035in 0.889mm 0.295kg/m

Plumbing Copper Tube

LWC

ASTM B88

Norminal Size: 1/4

O60

Item No.: B88L10DP

0.375in 9.530mm 0.030in 0.762mm 0.188kg/m

Plumbing Copper Tube

LWC

ASTM B88

Norminal Size: 1/4

O60

Item No.: B88L10WXP

0.375in 9.530mm 0.030in 0.762mm 0.188kg/m

Plumbing Copper Tube

Copper pancake coils

ASTM B88

Norminal Size: 3/8

O60

Item No.: B88L13WXP

0.500in 12.700mm 0.035in 0.889mm 0.295kg/m

Plumbing Copper Tube

Copper pancake coils

ASTM B88

Norminal Size: 1/2

O60

Item No.: B88L16WXP

0.625in 15.880mm 0.040in 1.016mm 0.424kg/m

Plumbing Copper Tube

Copper pancake coils

ASTM B88

Norminal Size: 5/8

O60

Item No.: B88L19WXP

0.750in 19.050mm 0.042in 1.067mm 0.539kg/m

Plumbing Copper Tube

Copper pancake coils

ASTM B88

Norminal Size: 3/4

O60

Item No.: B88L22WXP

0.875in 22.230mm 0.045in 1.143mm 0.677kg/m

Plumbing Copper Tube

Copper pancake coils

ASTM B88

Norminal Size: 1

O60

Item No.: B88L29WXP

1.125in 28.580mm 0.050in 1.270mm 0.974kg/m

Plumbing Copper Tube

Copper pancake coils

ASTM B88

Norminal Size: 12

H58

Item No.: B88L308ZG

12.125in 307.980mm 0.280in 7.112mm 60.085kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 10

H58

Item No.: B88L257ZG

10.125in 257.180mm 0.250in 6.350mm 44.725kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 8

H58

Item No.: B88L206ZG

8.125in 206.380mm 0.200in 5.080mm 28.715kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 6

H58

Item No.: B88L156ZG

6.125in 155.580mm 0.140in 3.556mm 15.180kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 5

H58

Item No.: B88L130ZG

5.125in 130.180mm 0.125in 3.175mm 11.323kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 4

H58

Item No.: B88L105ZG

4.125in 104.780mm 0.110in 2.794mm 8.001kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 3 1/2

H58

Item No.: B88L92ZG

3.625in 92.080mm 0.100in 2.540mm 6.386kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 3

H58

Item No.: B88L79ZG

3.125in 79.380mm 0.090in 2.286mm 4.949kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 2 1/2

H58

Item No.: B88L67ZG

2.625in 66.680mm 0.080in 2.032mm 3.689kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 2

H58

Item No.: B88L54ZG

2.125in 53.980mm 0.070in 1.778mm 2.606kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 1 1/2

H58

Item No.: B88L41ZG

1.625in 41.280mm 0.060in 1.524mm 1.701kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 1 1/4

H58

Item No.: B88L35ZG

1.375in 34.930mm 0.055in 1.397mm 1.315kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 1

H58

Item No.: B88L29ZG

1.125in 28.580mm 0.050in 1.270mm 0.974kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 3/4

H58

Item No.: B88L22ZG

0.873in 22.230mm 0.045in 1.143mm 0.677kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 5/8

H58

Item No.: B88L19ZG

0.750in 19.050mm 0.042in 1.067mm 0.539kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 1/2

H58

Item No.: B88L16ZG

0.625in 15.880mm 0.040in 1.016mm 0.424kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 3/8

H58

Item No.: B88L13ZG

0.500in 12.700mm 0.035in 0.889mm 0.295kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88

Norminal Size: 1/4

H58

Item No.: B88L10ZG

0.375in 9.530mm 0.030in 0.762mm 0.188kg/m

Plumbing Copper Tube

Straight pipe

ASTM B88