Viessmann Vitovalor 300-P Installation And Service Instructions For Contractors page 149

External connection assembly
Pos. Part
0001 Tee
0002 Gasket A 17 x 24 x 2 (5 pce)
0003 Gasket A 10 x 15 x 1.5 (5 pce)
0004 Corrugated pipe, back, heat exchanger
(cont.)
Parts lists
149