What size pump for these reactors.

[JTremonte]

I got 2 of these reactors and was planning on using 1 for GAC.

Question is what size pump should I use? This is fore a 120 Total Gallon Tank.

Reactors are 16" tall, 4" diameter.

Thanks

 

[lapin]

You could use 2 of these at a minimum. I find they dont last but about a year.
https://www.bulkreefsupply.com/maxi-jet-powerhead-1200.html

 

[JTremonte]

I found out on the website because they're old reactors that its 150-250 gph. Thank you!

 

[lapin]

You put a ball valve on the pumps output to control the flow thru the reactor. Carbon does not need to tumble but GFO does. Pressure will vary with media type and amount in the reactor.