Vent Seats

NEW  The following Conewango Liners and Sani-caps now come with a Vent Seat

IB-LB             MR-T3
IB-NB            MR-T3-51
ID-SL1           MR-T4
ID-SL5           MR-T4-51
ID-SCE

This is for ease of installation and aids in vent retention.