Moeller Boat Drain Plugs & Tubes: Size, Material and Installation

Boat drain hardware comes in several configurations that are easy to confuse: Turn-Tite and Snap-Tite bailer plugs, threaded garboard plugs, flanged brass or aluminum drain tubes and separate flanging tools. This guide groups Moeller models by function so you can compare the right dimensions before ordering.

Three different drain-hardware functions

Removable drain plug

Seals a matching drain opening using a twist, snap or threaded mechanism.

Permanent drain tube

Creates the physical opening through a transom, motorwell, livewell or baitwell.

Installation fitting or tool

Helps form or mount a compatible drain; not a substitute for the final sealing plug.

Moeller drain plugs: Turn-Tite, Snap-Tite and T-handle

Even where products share a nominal one-inch diameter, their retaining mechanisms differ.

Part number Type Listed size Construction
02089910 Turn-Tite bailer plug 1-inch nominal Brass and sealing component
02900010 Snap-Tite bailer plug 1-inch nominal Brass and rubber seal
05305610 Snap-down drain plug 1-inch nominal Brass and rubber seal
05306110 T-handle twist plug 1-inch nominal Brass and rubber seal

Flanged drain tube size chart

Brass and aluminum flanged tubes come in more than one outside diameter and length. Dimensions below are nominal and expressed in inches.

Part number Type Outside diameter × length Material
021002188D Aluminum flanged tube 1-inch OD × 1⅞-inch length Aluminum
021002225D Aluminum flanged tube 1-inch OD × 2¼-inch length Aluminum
021003188D Brass flanged tube 1-inch OD × 1⅞-inch length Brass
021003600D Brass flanged tube 1-inch OD × 6-inch length Brass
021253225D Brass flanged tube 1¼-inch OD × 2¼-inch length Brass
021253300D Brass flanged tube 1¼-inch OD × 3-inch length Brass

Motorwell drains and installation hardware

A threaded garboard plug uses a different sealing arrangement than the rubber-seal bailer plugs. The one-inch flanging tool is used during suitable drain-tube installation.

Part number Hardware Reference size Material or use
020300-10 Motorwell drain tube 1-inch OD Plastic tube
020309-10 Garboard drain plug ½-inch threaded fitting Stainless steel
020700-00 Drain-tube flanging tool 1-inch OD tube tool Installation tool
020848-001 Aluminum drain fitting kit 1-inch drain fitting kit Aluminum

Selecting and installing the correct parts

For tubes, measure the outside diameter and the required length beneath the flanged end. The installer must form or fasten the opposite end as the specific fitting requires; use the manufacturer's instructions and suitable flanging hardware. For plugs, compare the opening, mechanism and seal rather than treating every nominal 1-inch product as interchangeable.

Match the installed drain, not just the label.

Moeller lists compatible families of plugs and flanged tubes, but the nominal plug diameter does not by itself confirm the fit of a specific existing drain. Confirm the replacement against the actual fitting and installation instructions before use on the water.

Moeller marine drain plugs, tubes and tools

Select a part number to review the matching product listing and availability.

Related marine parts guides

Marine livewell plumbing and pump parts · Marine bilge pump guide

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