SF5050, R453a, (RS-446), (RS-70), Professional Check & Charge-It Kit
Please use the R22 scale for R453a.
(1) SF5050 Check & Charge-It Gauge with 1/4" male flare hose connection
(1) 36" Charging hose, 1/4" female flare by 1/4" female flare.
One connection on the hose is straight, and the other has a slight 45-degree angle.
The connection with the 45-degree angle has an internal valve core depressor.
The straight connection does not have a valve core depressor nor is one needed.
*The JB Part# M2-250 gauge reads in; R-12, R-22 and R-502
