The Aquatec QJS-554 is a SmartPump fitting for the following SmartPump models:
The Smart Pump 1/2" Quick Connect - Straight Fitting is for pumps with a 3/4 inch port opening that accepts Quick Disconnect (QD) style o-ringed fittings. Typical port openings for the QJS-554 include a sliding clip to secure fittings in port. This SmartPump fitting measures 1/2 inch outer dimension (OD).
This 1/2 inch fitting is a straight fitting with John Guest push in connection.
The Aquatec QJS-554 specifications: