What is the difference between Quantum HFP-500DI and HFP-342DI Fuel Pumps?

[NMKS037]

I need to replace the fuel pump on my 2006 SeaDoo Sportster 155 4-TEC
I am looking to get Quantum Fuel Pump replacement kit.
They are offering two different types HFP-500DI and HFP-342DI
Can anyone explain to me what is the difference between HFP-500DI and HFP-342DI ???
Are there any modifications needed when HFP-342DI is used?

Thank you in advance

https://www.highflowfuel.com/i-3546...o-sportster-2003-2006-replaces-204560259.html
https://www.highflowfuel.com/i-3546...al-filter-for-seadoo-sportster-2003-2006.html