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Low side service valve.
OEM Part - Manufacturer #663864R
Valve, txv, eq, ck, r410a, 4.0t, id
OEM Part - Manufacturer #669882R
Valve, check, 3/8", magnetic
OEM Part - Manufacturer #669898R
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3/4" low side service valve
OEM Part - Manufacturer #663864R
Valve,ref.3/8",removable stem
OEM Part - Manufacturer #663574