関連ワード:  1/2 vs 3/4 pex    1/2 vs 3/4 pex flow rate    1 2 vs 3 4 pex flow rate    1 2 vs 3 4 pex    1 2 or 3 4 pex    1 2 and 3 4 pex crimper    1 2 and 3 4 pex crimp tool    1 2 or 3 4 pex water supply line    1 2 or 3 4 pex washing machine    1 2 or 3 4 pex to shower head