.The tank levers are not manufactured by those companies. Polished Brass Decorative Tank Trip Lever for Kohler® Side Mount Metal 8" Arm Wellworth®/Barrington™ Pressure Lite® New Style8" armThe manufacturers' names are used only to describe whose products the tank levers will fit.
Retards heat flow for hot water plumbing, liquid heating, dual temperature piping and many solar systems. Use indoor, outdoor, underground. Resistance to moisture and vapor flow..