I.D. Pump part Need Brand

I have a pump that needs new impellers they are bronze. I do not have a serial# and do not know the manufacture. I do have the numbers and trim off the impellers. Could anyone I.D. the brand from the numbers from the parts.

Impellers: -- D-R4
-- 620047
Trim
OD Back -- 6.100
OD Front -- 5.410 I also attached a picture of the suction case. I need the one in the picture that is the dirty one and that is broke. no part# on suction case. I have added the info on the #'s on the inner bowls.

Impeller Bowls -- 620001-E-88
Wear Ring ID -- 4.035"


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