From right to left, you've got a Hayward Super pump, a Hayward cartridge filter, probably in this series:
http://www.hayward-pool.com/prd/_102...02_15516_I.htm
and a Hayward inline feeder (which needs to be removed -- it restricts the flow tremendously!)
It appears your equipment has been winterized, and is not ready for use -- parts are missing.
Ben
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