TK 56430-18-IP-EN
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Determining Fitting Type
Figure 47. Tube-O and ORS fittings shown.
Determining Fitting Size
Figure 48. Measure thread diameter to determine fitting size.
Refrigerant Hoses
Refrigeration hoses come in various sizes from #4 through #16. Always refer to your unit installation manual for the
proper size hoses required for your specific model. Typical hose sizes for vehicle powered trucks are shown below.
Determining Hose Size
Measure the inside diameter (I.D) of the hose to determine the hose size.
Table 6. Determining hose size.
Hose I.D.
Hose Size
.20 in. (5.1mm) #4
.31 in. (10/3mm) #6
.41 in. (10.3mm) #8
.50 in. (12.7mm) #10
.63 in. (15.9mm) #12
.88 in. (22.4mm)
#16
SSeeccttiioonn 66 -- RReeffrriiggeerraanntt HHoossee aanndd FFiittttiinnggss SSttaannddaarrddss
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