This RSPKU series spill kit refill has a 50-gallon container capacity. Along with meeting the standards for 29 CFR, 40 CFR, this spill kit refill includes 100 absorbent pads, 2 56 pack wipers, 2 coveralls, gloves, safety goggles, 3 28 ounce shakers of Supersorb, four disposal bags/ties, 4 large absorbent socks, 6 small absorbent socks, and more, emergency response handbook/instructions, and 100 pads. It is designed for use with SPKU Series.