HAYDON
Haydon C100112 Electro-Galvanized Cushioned Tubing Clamp 18 Lbs
A nice touch is the frosted plastic finish that reduces glare and looks more professional.
Haydon 73605B 1/4" Carbon Steel U-Bolt Beam Clamp
You will notice the WR-A212 (SA) has a universal bracket that fits most mounts.