Those will work. unless they won't fit in your holes in the tank.Was also looking at these. @F i s h y this one is for you.
Bulkhead Schedule 80 Slip x Thread (Slip on the Flange/Head side)
Bulkheads allow plumbing to flow through your aquarium or sump. Heavy duty Schedule 80 PVC bulkheads feature some distinct advantages over ABS bulkheads: O-Rings are 2X as thick as ABS O-Rings Schedule 80 construction will far outlast ABS Reliable seams Flange and nut side are very easy to grip...www.bulkreefsupply.com