GRB 152
Recommended for open bore options
The GRB 152 is a highly stimulating profile that extends comfortably into the lower sigmoid colon. By reaching past the rectum, this hybrid nozzle delivers enema solutions directly to a higher position in the gut, helping you completely bypass localized fullness sensations and avoid standard lower-body cramping during high-volume sessions.
Anatomical Seal & Segmented Profile: Modeled exactly after the functional tip end of our larger CT152 Model Colon Tube, this mid-length appliance alternates between high-friction rib segments and smooth relaxation zones. The substantial, broad diameter of the ribs and valleys form a firm, highly effective hydraulic seal against the anorectal sphincter muscle to maximize retention and eliminate fluid leakage.
Anatomical Design & Dimensions:
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Overall Length: 13.0” total length.
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Insertable Depth: Provides approximately 12.0” of deep, fully usable insertion to the safety flange.
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Broad Entry Tip: Features a robust 1.5” ball tip followed immediately by three structural 1.5'' stimulation ribs.
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Smooth Mid-Section: Breaks into a 2.5'' long smooth expansion zone maintaining an approximate 1.5'' diameter.
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Rear Escalation Ribs: Tapers upward into three larger 1.7'' ribs to maximize muscle engagement.
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Heavy Base Design: Finishes with a short, smooth 2.0” diameter base section right before a final 2.0” retention rib.
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Sphincter Retention Valley: Features a 1.6'' diameter neck nestled securely past the flared external safety flange.
👑 Bob's Choice Recommendations
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Experience Level: Advanced. Due to its consistent 1.5" to 2.0" structural thickness and 12" insertable reach, this heavy-gauge hybrid nozzle is built for seasoned enthusiasts.
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The Prime Durometer Recommendation: For an intricate, segmented profile like the GRB 152, Bob highly recommends ordering in #00-50. This density ensures that the two separate sets of multi-ribs and the smooth mid-section retain their distinct, anti-leak tactile shapes under internal muscle pressure, providing exceptional tactile stimulation while bending naturally with your body.
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The Plush Compliance Alternative: If you prefer these large 1.7" and 2.0" rear segments to feel incredibly soft, forgiving, and easily compressible as they pass the sphincter, Bob suggests selecting our extra-soft #00-50 composition.
Color Options: #18 and #30 are available in pure translucent. #00-50 and #10 base colors are translucent white and can be mixed with any standard color.
Important Safety Disclaimer: Because individual anatomy varies, we cannot guarantee a full fit for all larger diameter pieces. Please use all products with care. By purchasing, you accept full responsibility for safe use. If you experience discomfort, discontinue use immediately.