The 3.5-Gallon Gleco Trap® HV Refill features a newly engineered, air-tight lid with threaded inlet and outlet extensions that reserve an air pocket inside. When the trap is full, simply remove the air-release plug to drain inlet and outlet plumbing into the bucket before disconnecting. Patented design prevents the mess and contamination that occurs with removal of traditional plaster traps. 11"H.
Made in USA. 
