ThermoDrain

ThermoDrain TD 46% Efficiency – 4″ Commercial High-Flow Drain Water Heat Recovery, 42″ (TD442B)

ThermoDrain TDX 40.3% Efficiency – 3″ Drain Water Heat Recovery, 32.5″ (Crimp PEX)

ThermoDrain TDX 42.07% Efficiency – 3″ Drain Water Heat Recovery, 35″ (Crimp PEX)

ThermoDrain TDX 46.23% Efficiency – 3″ Drain Water Heat Recovery, 41.5″ (Crimp PEX)

ThermoDrain TDX 55.04% Efficiency – 3″ Drain Water Heat Recovery, 61.5″ (Crimp PEX)