For the accurate metering of all group sizes of West System “105 System” resin and hardeners. The 300 Mini Pumps accurately deliver the proper 5:1 ratio of resin to hardener with one full stroke of resin for each one full stroke of hardener.
• Includes three pumps: one for 105 resin, one for 205/206 hardeners, and one for 207/209 hardeners