Types        
AC and refrigerator copper lancets Highside (ID 1/4 OD 3/8), low side  (ID 5/8, OD 3/4) for AC 1/4  3/8  5/8  3/4  7/8  1  (1 1/8)    
Water Heater pipe 1/2    3/4 3/4 with thread to 3/4 pex: 3/4 3/4 FNPT (shark)   Plumbing
Electrical wire 40 AMP : 8 AWG      
 Slip Tee 3/4"x3/4"x3/4" FNPT   Tankless Flushing extra part added Plumbing
3/4 Cap (Capuchon) LFA-868     Plumbing
3/4 male connector LFAC-877     Plumbing
         
         
Ductwork Circle =46" => D=12      
         
Plumbing  PVC water pipe : 1 1/2 " , 1 1/4" ; 1" ; 3/4 " ; 1/2" ; 3/8",1/4"  3/4" most used in HVAC, then 1"