Our plastic barrel parts department stocks the most common barrel pumps, replacement parts, and water preserver products available. All of the parts in this department will work with plastic barrels that have a 2" bung opening. Just make sure you correctly identify the opening as fine thread or coarse thread.
The plastic that our barrel parts work with is referred to as HDPE or High-Density Polyethylene. HDPE is known for its strength and durability. It is also the ideal plastic for barrels because it does not leach into the water. The plastic barrel parts we sell are designed to work with HDPE and when used properly, will not strip threads or damage the barrel.