Massachusetts and West Virginia Pool Rules With Graphic Sign 30 x 24 Inches on Heavy Duty Aluminum pipe size_1 4" This is a PVC Reducing This is a PVC Reducing Tee Fitting with two slip (socket) fitting connections and one FIPT (female) connection that measure 5 x 5 x 4 Inch This is a replacement Chemtrol pH probe for Chemtrol pool chemistry controllers The Massachusetts and West Virginia Pool Rules Sign with management statement has been designed in accordance with the Massachusetts 105 CMR 435 and West Virginia 64 CRS 16 and is printed on heavy duty aluminum material This sign is printed using our high quality weather and sun resistant inks