T-H Marine 12" Push-In Overflow Drain Tube – Straight, 1-1/8" Thru-Hull

Quick Push-In Overflow Control for Smaller Livewells and Baitwells

The T-H Marine 12" push-in overflow drain tube gives you simple, tool-free water level control in your livewell or baitwell. Push the flexible vinyl end into your 1-1/8" T-H Marine thru-hull fitting to hold your overflow height — pull it out to drain. No valves, no tools, no complicated setup.

The 12" white PVC standpipe is sized for shallower livewell and baitwell tanks, and can be trimmed shorter to dial in your exact overflow height. A straightforward, reliable solution for smaller fishing boat setups.

Key Features

• Push-in design — flexible vinyl end inserts directly into T-H Marine 1-1/8" thru-hull fittings; no tools required
• Simple drain operation — insert to hold water level, remove to drain by gravity
• 12" white PVC standpipe — suited for shallower livewell and baitwell tanks
• Trimmable to length — cut the PVC tube to match your tank depth or preferred overflow height
• Straight configuration for standard vertical installations
• Fits all T-H Marine 1-1/8" thru-hull fittings

Installation Notes

• Requires a T-H Marine 1-1/8" thru-hull fitting (sold separately) — see the T-H Marine 90° Thru-Hull Fitting for a compatible angled option
• Insert the flexible vinyl end into the thru-hull opening to seal; pull out to drain
• Trim the PVC standpipe to your desired overflow height using a standard pipe cutter or saw

Best For

Smaller livewells, baitwells, and cooler drain setups where a shorter standpipe is the right fit. Ideal for compact fishing boats, kayak fishing setups, or any installation where a 12" overflow height is appropriate. If your livewell is deeper or you need a longer standpipe, see the T-H Marine 18" Overflow Drain Tube with Screen instead.

Parts Desk Insights

This is the right tube for customers with smaller or shallower livewell and baitwell tanks running T-H Marine 1-1/8" thru-hull fittings. The key qualification is fitting size — confirm the customer has a 1-1/8" T-H Marine thru-hull before selling, as this tube is not interchangeable with the 1-1/2" version. If the customer needs a longer standpipe or wants a built-in screen, direct them to the 18" version with screen. The trimmable length is a useful selling point for customers who aren’t sure of their exact tank depth. Pairs with the T-H Marine 90° Thru-Hull Fitting for angled hull exits.