The Buyers UR50MK is a genuine Replacement Spring Mount Kit for Buyers Products UR50A and UR50S 50-gallon upright aluminum and steel hydraulic reservoirs. This essential kit includes 4 bolts, 4 washers, 4 nuts, and 4 springs, replacing the necessary components to securely remount your reservoir (mounting brackets are not included). Weighing approximately 1.60 lbs, this durable kit ensures proper vibration isolation and extends the lifespan of your hydraulic system.