About Class 1 insulation rubber foam
"As you may have observed, the big refrigerant line carries cold vapor whilst air conditioning, and with a humid day it sweats.Tester101Tester101 132k7979 gold badges324324 silver badges612612 bronze badges two What do you suggest liquid line and metering device?Shut-cell insulations tend to be black in color and they are soft just like a sponge bu