---
product_id: 15532933
title: "Flow-Max Boat Self-Bailing"
brand: "t-h marine"
price: "C$2098"
currency: NIO
in_stock: true
url: https://www.desertcart.ni/products/15532933-flow-max-boat-self-bailing
store_origin: NI
region: Nicaragua
---

# Self-bailing design 70% more drainage Easy twist-off cleaning Flow-Max Boat Self-Bailing

**Brand:** t-h marine
**Price:** C$2098
**Availability:** ✅ In Stock

## Summary

> 🚤 Keep your boat dry and stylish with Flow-Max!

## Quick Answers

- **What is this?** Flow-Max Boat Self-Bailing by t-h marine
- **How much does it cost?** C$2098 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/15532933-flow-max-boat-self-bailing)

## Best For

- t-h marine enthusiasts

## Why This Product

- Trusted t-h marine brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seal the Deal:** Neutral buoyancy keeps your cockpit dry.
- • **Quick Installation:** Fits over 1-1/8" tubes with ease.
- • **Hassle-Free Maintenance:** Twist-off design for effortless cleaning.
- • **Upgrade Your Scupper Game:** Say goodbye to worn-out flappers!
- • **Maximize Drainage Efficiency:** Experience up to 70% more drainage.

## Overview

The T-H MARINE Flow-Max Boat Self-Bailing Ball Scupper Valve is designed to replace outdated flapper scuppers, offering a robust solution for improved drainage and maintenance. With a self-bailing mechanism that provides up to 70% more drainage, this valve ensures your cockpit remains dry. Its innovative twist-off design simplifies cleaning, while the easy installation process makes retrofitting a breeze. Built to fit over 1-1/8" motorwell tubes, this durable plastic valve is a must-have for boating enthusiasts.

## Description

Flow-Max Boat Self-Bailing

## Features

- Replace Worn Out Flapper Scuppers - the Flow Max ball scupper features multiple mounting openings to make retrofits quick and easy - no filling holes or re-drilling
- Improved Drainage - self bailing scupper drain features a larger exit hole that offers up to 70% more drainage than other boat scuppers
- Keep Your Cockpit and Deck Dry - boat scupper ball uses neutral buoyancy to ensure a tight seal and eliminate the possibility of water flowing back into the drainage lines
- Easy Cleaning - self-draining scupper features a new twist-off design that makes cleaning out excess debris a snap
- Installation - scupper seal is slotted to fit over 1-1/8" motorwell tubes and includes a safety screw to keep valve in place - installation will require tapered head screws

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Plastic |
| Brand | T-H MARINE |
| Item dimensions L x W x H | 3 x 4.75 x 8.75 inches |
| Exterior Finish | Stainless Steel |
| Inlet Connection Size | 1.25 Inches |
| Inlet Connection Type | Slip Fit |
| Outlet Connection Type | Slip Fit |
| Number of Ports | 2 |
| Outlet Connection Size | 1.13 Inches |
| Valve Type | Ball Valve |
| Global Trade Identification Number | 00733572042610 |
| Manufacturer | TH Marine |
| UPC | 733572042610 |
| Item Package Dimensions L x W x H | 8.54 x 4.65 x 2.44 inches |
| Package Weight | 0.11 Kilograms |
| Item Dimensions  LxWxH | 3 x 4.75 x 8.75 inches |
| Item Weight | 3.68 ounces |
| Brand Name | T-H MARINE |
| Warranty Description | 1 Year Manufacturer |
| Model Name | TH Marine |
| Color | Clear |
| Suggested Users | mens |
| Number of Items | 1 |
| Part Number | FMS-1-0-DP |
| Model Year | 2020 |
| Sport Type | Boating, Fishing |

## Product Details

- **Material:** Plastic
- **Brand:** T-H MARINE
- **Item dimensions L x W x H:** 3 x 4.75 x 8.75 inches
- **Exterior Finish:** Stainless Steel
- **Inlet Connection Size:** 1.25 Inches
- **Inlet Connection Type:** Slip Fit
- **Outlet Connection Type:** Slip Fit
- **Number of Ports:** 2
- **Outlet Connection Size:** 1.13 Inches
- **Valve Type:** Ball Valve

## Images

![Flow-Max Boat Self-Bailing - Image 1](https://m.media-amazon.com/images/I/512KKVa97IL.jpg)
![Flow-Max Boat Self-Bailing - Image 2](https://m.media-amazon.com/images/I/41thtNM1HqL.jpg)
![Flow-Max Boat Self-Bailing - Image 3](https://m.media-amazon.com/images/I/31SxPzQoedL.jpg)
![Flow-Max Boat Self-Bailing - Image 4](https://m.media-amazon.com/images/I/41vP26mIXTL.jpg)

## Questions & Answers

**Q: is the ball removable without unscrewing it? what it the distance between screws on center?**
A: the housing is 2 pieces. you can remove the outer portion that holds the ball. it can be removed by removing 2 small retaining screws and the outer part twists to the left to unlock and remove it from the stern mounted base. the base mounting screws are center to center are 2-7/16"

**Q: si pueden poner mas fotos con las medidas o dimenciones por que no entiendo las medidas esas que aparecen en las especificaciones gracias**
A: yes

**Q: Hello!  Quick question...  My boat transom drain tubes measure 1 3/8".  Is the scupper seal ball opening same size, or wider, than the 1 3/8" hole?**
A: The seal ball seals to the base of the seal-ball scupper and not to your drain holes.. I have been using these for several years and they work great..

**Q: Will it fit a Sea-Doo Speedster 150?**
A: It should, measure flange to make sure. OEM standard

## Frequently Bought Together

- T-H MARINE Flow-Max Boat Self-Bailing Ball Scupper Valve - Positive Sealing Ball Drain Replaces Old Flapper Scuppers - Fits Over 1-1/8" Motorwell Tubes
- 3M Marine Adhesive Sealant Fast Cure 5200 (05220) Permanent Bonding and Sealing for Boats and RVs Above and Below the Waterline Waterproof Repair, White, 3 fl oz Tube
- 3M TALC Marine Adhesive Sealant Fast Cure 4200 (05260) – Semi-Permanent Flexible Adhesive Sealant for Boats and Marine Applications – White – 3 Ounces

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**Shop now:** [https://www.desertcart.ni/products/15532933-flow-max-boat-self-bailing](https://www.desertcart.ni/products/15532933-flow-max-boat-self-bailing)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-11*