RIFOair Vent Valve / Vacuum Breaker Model 8254 (PN 40) Model 8227 (PN 40) Model EF – 8551-N (PN 160) Model EF – 8281 (PN 100) Model EF 8281 (PN 40) Model EF – 8180-N (PN 40) Model EF – 8180-N (PN 25) Model E 8180 (PN 25) Model Minox-G-8170 (PN 25) Model WU 8101 (PN 25) Model 8082 (PN 16) made of 2.1086 (RG-10) Model Mini – N 8064 (PN 16) Model Vakuquick-17100-N (PN 25)
