Simply measure the outside diameter of the hose installed on fitting. Then select a hose clamp so that the outside diameter of the hose is approximately in the middle of the clamping range of the clamp
Constant Tension Band Hose Clamps
For Heater & Radiator Hoses
1074 Spring Steel
Black OEM Finish
Conforms To SAE J1508 & GM 6298M
Rated At 30 P.S.I.
Clamping Range: 37.2mm - 44.5mm (1-15/32" - 1-3/4")
Band Width: 15mm (19/32")
5 Per Package