WEST-SYSTEM 303 A-Pack pump set 3:1

WEST special pumps that mix resin and hardener at a ratio of 3:1.
Beware: These pumps are only for use with special hardener (Types 207 or 209) following the manufacturer's instructions, and are not for combining standard resin with standard hardener (Types 205 or 206). Pump sets for A and B packs are only for use with West System products, not for use with other plastic canisters.

ONLY FOR MIXTURES OF 3 : 1!