BK Resources 4SBR-3RA-PLY-TLB Swivel Caster 1-1/2" Expanding Stem 4" Polyurethane Wheel

BK Resources, 4SBR-3RA-PLY-TLB, Swivel Caster, 1-1/2" expanding stem, 4" polyurethane wheel, top lock brake, 300 lb. capacity, fits 1-1/2"W OD tubing, resistant to acids and caustics, double ball bearing, operational temp range -45º to 180ºF, zinc plated steel