Mechanical seals for GRUNDFOS-SARLIN pumps: AP, CDM, CDP, CH, CHI, CHV, CLM, CLP, CR, CR/CRI, CRE1, CRI1, CRN, CR1, DBM, DBP, LM, LMD, LM, LP, LPD, NB, NK, NM, NP, SEV, SE1, SLV, SL1, TP(D), UPT