Adjustable R134a Quick Coupler High Low Conversion Adapter Fittings, Refrigerant Tank Adapter Kit for AC Air conditioning Refrigerant R134a HVAC Air Condition Gauge Manifold Hose Connector

1.Adjustable R134a Quick Coupler High Low Conversion Adapter :
Specifications: 
★Work with Car Air Conditioner Refrigeration
★Side fitting for AC manifold gauge set/R134A type
★High and low sets
★Blue: Low side quick connector/adapter(1/4" SAE male flare)
★Red: High side quick connector/adapter(1/4" SAE male flare)
Features:
★Aluminum construction for the Blue & Red Switch; nickel plated bronze for the body; bronze construction for the ACME adapter.
★For R134A service ports quick coupler adapter, 1/4" SAE male flare.
★Universal Compatibility: The adjustable Adapter Fittings provides universal compatibility for all models.
★Contain with Low side & High side. Blue: Low side quick connector/adapter; and Red: High side quick connector/adapter.
★Accuracy and Durability: Accurate snap lock & knurled grip ring for easy operation, detachable adapter for longer maintenance.
★How to Use: Connect bottoms with vehicle's R134A service port; connect the ACME adapter with the refrigerant hose; turn on/off the switch at top to turn it on/off.
2.R134a Refrigerant Tank Adapter:
Specifications: 
Material: Brass.Color: Gold.Type: Straight type adapter
Thread:1/2 Inch Acme Female x 1/4 Inch Male Flare.
Features:
R134a Refrigerant Tank Adapter, Connects R12 Hose to R134A refrigerant tank.
Usefully adapters for charging and service tools, such as vacuum pump, can tap or oil injector to adapt between R12, R22 system and R134a systems.
For charging and service tools to adapt between R22 system and R134a systems; 
Brass construction, quick connect, good tensile strength, resisting corrosion and AC low-loss fitting. 
Package include:
2 x Adjustable R134a Quick Coupler High Low Conversion Adapter
1 x  R134a Refrigerant Tank Adapter