CT-122 1.6" Colon Tube
Recommended for open bore options
The CT-122 is a large-diameter silicone colon tube with a 1.60" (40.6 mm / 122 French) outer diameter. It is available in lengths from 20" to 60", with two tip styles and several flange options.
Details
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Outer diameter: 1.60" (40.6 mm / 122 French)
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Available lengths: 20", 24", 28", 32", 36", 40", 44", 48", 52", 60"
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Tip styles: Tip Style A (Bumpy Ribbed) or Tip Style B (Smooth Tapered)
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Flange options: 2.25" Multi-Stage Flange, 2.4" Double-Ribbed Ball Flange, or No Flange
Tip Style A — Bumpy Ribbed
A textured entry with progressive contours along the tip.
Tip Style B — Smooth Tapered
A gradually tapered entry that transitions into the full 1.60" shaft.
Flange Options
2.25" Multi-Stage Flange
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Approximately 2.25" expansion ball
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1.56" initial valley
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2.25" secondary ball
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1.8" retention valley
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Approximately 2.6" final flare
2.4" Double-Ribbed Ball Flange
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Approximately 1.9" double-ribbed section
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1.6" valley between the ribs
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2.4" primary anchoring ball
No Flange
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Flat-ended configuration without a retention flange.
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This option is not recommended because the tube can migrate internally.
Choosing Your Silicone Firmness
The CT-122 is a very large-diameter tube and is not recommended for beginners or intermediate users.
Bob's recommendation: #00-50 Soft. The softer silicone allows the large shaft to flex and compress more easily during placement.
For even more flexibility, #00-20 Very Soft is also available.
Color Options
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#18 and #30: Pure translucent silicone
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#00-20, #00-50, and #10: Translucent white base that can be mixed with standard colors
Please Note
The CT-122 is 1.60" in diameter throughout the shaft, making it a large piece intended for experienced users. Longer lengths add substantially to the overall size and should be approached accordingly.
A retention flange is strongly recommended. The No Flange option does not provide a physical stop against internal migration.
Use appropriate lubrication and never force insertion. Stop immediately if you experience pain, bleeding, or significant discomfort. Inspect the sound before each use and do not use it if damaged.