You are looking at the wrong items: A "G1311-60070" is a component part of a degasser, NOT a degasser module. Skip the aftermarket degassers and get one that fits well with your existing system (not going to cost you more to do so).
Purchase a professionally refurbished Agilent model
G1322A degasser for your Agilent HPLC system. *Do not purchase a used model G1379A or G1379B degasser. Please do not purchase one of the many contaminated, broken modules sold on the auction sites, ebay etc or from an equipment reseller. Those are basically broken, contaminated modules being flipped by sellers with no training in how to service them. Those systems usually need a few thousand dollars worth of repairs (we know this because clients send those modules to us all the time for testing/repair). Using a "used" degasser that has not been professionally cleaned and serviced may contaminate your HPLC flow path (ghost peaks, invalid data).
If you are in the USA, please consider purchasing a professionally refurbished module from our business, Chiralizer Services, LLC. For almost 30 years we have been testing and servicing all brands and models of HPLC vacuum degassers for clients. We keep a small of number of professionally refurbished modules (Waters/Shimadzu/Agilent/Thermo) on-hand for clients that need them.
http://www.chiralizer.com/hplc-degasser-repair.html