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Head & Holding Tank Premium Sanitation Hose, 1.88 Inch ID

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Description & Features

Featuring a 1.88-inch internal diameter, the Head & Holding Tank Premium Sanitation Hose by Trident Marine Systems is designed for optimal performance in marine sanitation systems. This premium hose is built with an extra-thick tube and cover, specially compounded to resist odor permeation and withstand winterizing with antifreeze. The inclusion of a helical wire between two-ply reinforcement ensures excellent flexibility and bend radius, making it suitable for various marine environments.

This sanitation hose is recommended for head and holding tank applications, providing the longest odor-free performance in the market. For secure connections, it is compatible with short shank, medium shank, and stainless steel shank type fittings, best used with stainless steel T-bolt clamps.

SKU: 101-1786-TRIDENT

Supplier Part Number (MPN): 101-1786

Alternate Part Numbers: C1GM69

Specifications

Brand
TRIDENT MARINE SYSTEMS
Cover Material
EPDM/SBR
grp Application Construction
Premium Sanitation Hose for All Head and Holding Tank Applications, Extra Thick Tube and Cover Specially Compounded for Maximum Resistance to Odor Permeation and Winterizing with Anti-Freeze, Helical Wire Between 2-Ply Reinforcement Provides Excellent Fle
grp Fittings
Short Shank Type (Brass), Medium Shank Type (Brass), Shank Type (Stainless Steel)
grp Fittings Fitting Attachment Suggestions
Shank Type Fittings Attached with Stainless Steel T-bolt Clamps
Hose Color
Black/Green
Resistance Properties
Heat, Odor Permeation
Series
101 Series
Tube Material
EPDM/SBR

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Product Questions & Answers (2)

Question by: Rusty F on Jul 7, 2025, 7:12 PM
got a 1-7/8 inch line on my boat, is this hose actually 1.875 ID or is it one of those “close enough” sizes?
Answer by: Customer Support on Jul 9, 2025, 6:23 AM
For sizing, the inside diameter is listed as 1.875 inch, which is the same as 1-7/8 inch. It’s intended for head and holding tank sanitation runs where that ID is needed.
Question by: Larry W on Feb 20, 2026, 6:05 PM
does this hose hold up alright when you're winterizing with antifreeze? heard some hoses get stiff or crack after a season or two
Answer by: Customer Support on Feb 22, 2026, 8:40 AM
The tube and cover on this hose are specially compounded to handle winterizing with antifreeze, so running antifreeze through it during layup is not a problem. The material is built to resist that kind of exposure without breaking down over time. That said, self-draining installations are still the recommended setup for longest service life, even with a hose this tough.

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