42-01-167.4 42-01-168.2 42-01-189.4 87-120043-001 81-870269-000 / K-81-1010 53836-K254 (LHD Control Unit in enclosure c/w filter board (For conection to conventional zonal circuits) ) 1019-G3-T 81-870287-000 81-870269-000, Straight Siphon; 81-870287-001, Straight Siphon; 81-870287-002 81-870269-001, Straight Siphon; 81-870269-002 81-981332-0 D5622-001 for model PC2V400 87-120099-002