Select a Product Part NumberDescriptionIncludesSize B54BMPS-LX400Polycarbonate InsertPolycarbonate Insert4" B54BMPS-SK150Buna Seal Kit 1-1/2" B54BMPS-GL150Borosilicate Glass InsertBorosilicate Glass Insert1-1/2" B54BMPS-SK200Buna Seal Kit 2" B54BMPS-GL200Borosilicate Glass InsertBorosilicate Glass Insert2" B54BMPS-LX300Polycarbonate InsertPolycarbonate Insert3" B54BMPS-GL400Borosilicate Glass InsertBorosilicate Glass Insert4" B54BMPS-SK400Buna Seal Kit 4" B54BMPS-SK100Buna Seal Kit 1" B54BMPS-GL300Borosilicate Glass InsertBorosilicate Glass Insert3" B54BMPS-SK300Buna Seal Kit 3" B54BMPS-LX100Polycarbonate InsertPolycarbonate Insert1" B54BMPS-GL100Borosilicate Glass InsertBorosilicate Glass Insert1" B54BMPS-LX150Polycarbonate InsertPolycarbonate Insert1-1/2" B54BMPS-LX200Polycarbonate InsertPolycarbonate Insert2"