12" Pneumatic Caster Set of 4 - 2 Swivel with Bolt-On Swivel Lock/2 Swivel with Brakes - Black Rubber Wheel - 1,800 lbs. Capacity - Service Caster Brand - Walmart.com
8" Pneumatic Swivel Wheels Black Casters | Wholesale Hotel Products
Shepherd 10 in. Black Rubber and Steel Pneumatic Swivel Plate Caster with 350 lb. Load Rating 9796 - The Home Depot
CasterHQ 10" x 3.5" Swivel of 4 Set Pneumatic Caster - 4 PLY - 350 LBS PER 1400 LBS PER Set Capacity - Air Filled - Commercial/Industrial Application 10 inch x 3.5 inch Shock Absorption: Amazon.com: Industrial & Scientific
SNAP-LOC Air-Ride 6 in. Pneumatic Swivel Plate Caster with 300 lbs. Load Rating SLAC6ARS - The Home Depot
Pneumatic Series Casters | RWM Casters
8" PNEUMATIC RIGID CASTER - Jescraft
Caster, Pneumatic 8"x 3" Wheel, Swivel at BuyCasters.com, Your Caster, Wheel and Material Handling Experts