Filter, Bottle Bottom, Polypropyline, 20 micron 1 5414-33 Filtered Check Valve, PTFE, 10 micron 1 5414-34 For cap only with valves, order 5414-502 7622 CAPS/POURING RINGS for GL Threaded Bottles Screw caps and pouring rings for use with GL threads. Red caps have PTFE liner, all others are with lip seal. For 5539, 5557, 5559, and 5560 bottles. CAPS