
Psychologists Find Smiling Makes People Feel Happier
Smiling makes people feel happier, according to a new paper published in Psychological Bulletin. Smiling really can make people feel happier, according to research by a...
R12 R22 R502 Screw to R134A Convert Adaptor Valve Core 1/4'' SAE to 8v1 Thread. 8v1 Thread Female. A handy adapter switching the R12, R22, R502 screw interface into a R134A connection. Converts R12 R22 R502 Screw to R134A Connection. 1/4” SAE Female. Includes Valve Core Installed.. Condition:: New: Manufacturer Part Number: : R410a_Air_Con_Vac_HVAC_Conditioning_Aircon_Adapter , Brand: : Unbranded/Generic: UPC: : Does not apply , 。