Snap-On Dual 3412 - I I N N S S T T a a L L L L a a T T I I O O N N a a N N D D O O P P E E R R a a T T I I O O N N

2-2
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Figure 2-1: Service Hoses and Gauge Sets
R-134a
A  Low-Side Blue Hose Coupler with valve
B  Blue Hose
C  High-Side Red Hose Coupler with valve
D  Red Hose
E  Yellow Hose
F  Hand Valve
G  Service Port Fitting
Q  Anti-Blowback Valve
R-12
H  Low-Side Blue Hose Fitting
I  Blue Hose
J  Hand Valve
K  High-Side Red Hose Fitting
L  Red Hose
M  Hand Valve
N  Yellow Hose
O  Hand Valve
P  Service Port Fitting
Q  Anti-Blowback Valve