Dover

Dover drainage bags feature a top vent device, needle, luer lock and needleless sampling port option, drain spout and anti-reflux device option. It has the capacity to offer in 1000 mL, 2000 mL and 4000 mL; its top vent reduces positive and negative pressure to assist in draining the bladder. 

The luer lock sample port eliminated the need for a needled syringe, and is intended to accommodate urinalysis sampling needs without the risk of needlestick injury.