CONNECTION EX Fundação da Casa Popular Campinas SEALING UNIT SEALING UNIT SEALING UNIT SEALING UNIT SEALING UNIT SEALING UNIT STOPPER WITH RECESS STOPPER WITH RECESS Use in closing connections. STOPPER WITH RECESS STOPPER WITH RECESS Use in closing connections. STOPPER WITH RECESS STOPPER WITH RECESS Use in closing connections.