Set of 3 - 60 hoses (1 blue, 1 red, 1 yellow). Sight glass allows you to see refrigerant going into the system. Includes vacuum pump adapter #3105.This eliminates the need for a new vacuum pump for 1234 systems. 3 Gauge faces for easier viewing. High and low side screw down couplers. Comes in a black storage case. R1234YF Gauge Set Envirosafe Part#1234 Includes a Vacuum Pump Adapter Nuilt-in Sight Glass Professional Set ---R1234YF Aluminum Gauge set ---Set of 3 - 60 hoses (1 blue, 1 red, 1 yellow) ---Sight glass allows you to see refrigerant going into the system ---Includes vacuum pump adapter #3105.--3 Gauge faces for easier viewing ---Gauges are anti-flutter ---High and low side screw down couplers ---? This item is in the category "Business & Industrial\HVAC & Refrigeration\HVAC & Refrigeration Tools\HVAC & Refrigeration: Gauges & Probes". The seller is "john102561" and is located in this country: US. This item can be shipped worldwide.