Carling Beer Pump Recirculation Fittings

[Rob Coulson]

I have recently purchased a Carling Cider Pump Head for my bar but there was no recirculation (Condensing head) pipes attached, when I took the pump apart there is just two slotted holes for which I assume you can get fittings to suit so that I can attach the recirc lines. Does anyone know what fittings these would be called and where to get them? Pictures attached. Thanks