Item Number: 901-MO10-S5.4Product Category: TherMOstat Sizing KitsSingle 137.16mm/5.4" Bubbler Kit (fits 134.62mm - 139.45mm bubblers) Specifications Bubbler OD Nominal Dimensions (ND): 137.16 mm5.40 inBubbler OD Min: 134.62 mm5.30 inBubbler OD Max: 139.45 mm5.49 inBubblers per Thermostat: 1 x 1Fits to: 134.62mm - 139.45mm bubblers Related Products TherMOstat 10.0