ECOPLUG LOCKING WELL PLUGS EcoPlug Locking Well Plugs Constructed of recycled composite glass-filled polymer which is stronger than steel pound for pound, the EcoPlug is designed for years of worry-free use. The wing nut design with a recessed grip allows a lock (not included) to be easily secured to the well plug. The EcoPlug has a tethering attachment at the base for use with a variety of instruments, features no metal parts, and can be disassembled for easy decontamination. The EcoPlug is the only well plug made from recycled materials. If you're looking for a durable, tamper-proof well plug that will withstand repeated use and abuse over many years, the EcoPlug is an excellent fit for your requirements.DurabilityThe EcoPlug is manufactured from a recycled composite glass filled polymer that will not corrode, and is stronger than steel, pound for pound.Gripping PowerFor superior well security, the EcoPlug has more surface area contact between its watertight rubber gasket and the well inner wall casing than any other well plug on the market. FlexibilityThe EcoPlug's center locking mechanism allows a lock to be secured in a variety of positions, offering more flexibility in applications with limited space. Part # Size Application Units per Case ECOPLUG-1 FOR 1" WELL CASINGS 50 Other Features: easily disassembled for decontamination to allow repeated use chemical and temperature resistant properties tethering attachment at base for a variety of instruments wing nut design with recessed grip allows easy manipulation high visibility "eco-friendly" safety color no metal parts Surface area contact of popular well plugs:EcoPlug — 5.650 square inchesMorrison — 4.71 square inches (20% less surface area contact)MWSS — 4.40 square inches (28% less surface area contact)Cherne — 3.14 square inches (80% less surface area contact)