Hole Size = 1 3/4"

These products can be used with alternate assemblies:
(#2) Slimline 1" A/C Flat Metal Esc Pol Brass
(#4) Slimline A/C 1" Stem Assy, White
(#4) Slimline A/C 1" Stem Assy, Bone
(#6) Slimline A/C 1" Body Assy
(#7) Gasket, 1"Std Air Control, Super Micro Magna
(#8) Std Air Control Nut, Micro Ftng Nut
(#9) Slimline Air Control, 1" White
(#9) Slimline Air Control, 1" Bone
(#9) Slimline Air Control, 1" Gray
(#9) Slimline Air Control, 1" Black

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