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Black injection-molded drain plug with double ring seal and large removal ring

T-H Marine Supplies

T-H Marine Supplies Drain Plug 1-1/2" Thru-Hull winter accessory

SKU CH-31GG-7KWEX

A black injection-moulded push plug with a double-ring seal stops water flow through 1-1/2 inch thru-hull drains on baitwells or livewells

  • Product typeGloves, Mitts & Liners
  • Stops water flow through baitwell drains
  • Works with T-H Marine overflow drain tubes
  • Double ring seal prevents leaks
  • Large ring allows easy removal
  • Black injection-molded construction resists corrosion

T-H Marine Drain Plug for 1-1/2" Thru-Hull

This push plug stops water flow through drains on baitwells or livewells. It is designed to work with T-H Marine overflow drain tubes. The black injection-moulded construction provides a secure double-ring seal. A large ring allows easy removal when draining is needed.

Thermals, noise and power draw

As a passive mechanical plug, the product generates no heat and requires no electrical power. It operates silently without fans, motors or moving parts. There are no thermal or acoustic considerations for installation or use. Power consumption is zero.

Build fit and requirements

The plug fits a 1-1/2" thru-hull opening and pairs with T-H Marine overflow drain tubes. No tools, wiring or additional hardware are required for installation. It frees the user from manually bailing water or using temporary stoppers. The simple push-in design secures the drain instantly.

How it compares

Measured against everything we stock in Winter Hoods & Balaclavas, at today’s prices. Recalculated every night.

Price $9.99
Typical for this category: the median of 40 items is $9.99.

Specifications

Product
Product typeGloves, Mitts & Liners

Questions about this item

How do I install the drain plug in my 1-1/2" thru-hull fitting, and what step is often missed?

Insert the push plug into the thru-hull opening until the double ring seal seats fully; the step often missed is verifying both rings are evenly compressed to prevent water bypass.

What maintenance or replacement will this plug need over time?

Inspect the black injection-molded body and double ring seal each season for cracks or loss of elasticity; replace the plug if the rings no longer form a watertight seal.

What limit appears first when the plug is under sustained water pressure?

The double ring seal is the limiting factor; if pressure exceeds the seal's compression capacity, water will bypass the rings before the moulded body fails.

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