I bought that B&K Industries brand, just from a different online store
I couldn't find them in 1", so I used 3/4"
They also had 1.25, 1.5" but I figured going smaller would just make me better anyway
My pair work great for me
It's a shame that the side outlet elbow is such a difficult part to find in retail stores and when you get it online, even though the part itself is cheap, the shipping cost changes everything
I was going to go through a plumbing distributor, but they were going to charge $12+ a piece so I just got them online