What fittings do I need to connect the Varipump to pressure pipe?

To attach 2” pipework to the Varipump 20,000 and 30,000, you would need to use a 2” single union, threaded female to plain female, EA code: K82-76-66.You can then glue 2” pressure pipe directly into this. With the 10,000 you would need to use the 11/2” version,EA code: K82-76-55.