2" or 2-1/2" prefilter "bullseye"round hood things

[kokanee 800]

Where do you get these snap in circle prefilter hood vents must be 2" or bigger need 6.

Thanks

 

[powerteker]

slp vent's mountiant magic has them I think

 

[ZRrrr]

SLP Flowrites. Most dealers "should" carry them.