Simplify mixing epoxy using a dedicated pump. When dispensing epoxy and hardener from individual pumps, it is easy to lose track of the number of pumps and throw off the required 5:1 ratio; this is especially true for larger batches. West System 306-25 Model-A Metering Pumps ensure the proper quantity of resin and hardener is dispensed to maintain the correct mixing ratio every time. A single lever draws from separate reservoirs and dispenses resin and hardener at a rate of 0.5oz. per stroke. These pumps are ideal for hobbyists and small shops with small to medium projects. Focus on your project and not …was that three pumps or four” by using a West System Metering pump. Key Features Dispenses 105 resin and 205 or 206 hardener in the perfect ratio Speeds up mixing process Provides 0.5 oz. per stroke up to 32 oz. per minuteCarrying handle allows users to transport pump closer to the project Instructions