---
product_id: 172595471
title: "First Flush with Catch-All Tee - First Flush Diverter Kit, Suits 4\" Round Pipes"
brand: "rain harvesting"
price: "$232.25"
currency: USD
in_stock: true
reviews_count: 11
category: "Rain Harvesting"
url: https://www.desertcart.us/products/172595471-first-flush-with-catch-all-tee-first-flush-diverter-kit
store_origin: US
region: United States of America
---

# auto slow-release valve 4" pipe compatible Catch-All Tee for pure water First Flush with Catch-All Tee - First Flush Diverter Kit, Suits 4" Round Pipes

**Brand:** rain harvesting
**Price:** $232.25
**Availability:** ✅ In Stock

## Summary

> 💧 Capture the purest rainwater, effortlessly and reliably.

## Quick Answers

- **What is this?** First Flush with Catch-All Tee - First Flush Diverter Kit, Suits 4" Round Pipes by rain harvesting
- **How much does it cost?** $232.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/172595471-first-flush-with-catch-all-tee-first-flush-diverter-kit)

## Best For

- rain harvesting enthusiasts

## Why This Product

- Trusted rain harvesting brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Maintenance:** Auto-draining slow-release valve keeps the system clog-free and ready for every rainfall.
- • **Plug & Play Installation:** Includes all components except the 4" pipe—easy setup for busy pros.
- • **Sleek, Transparent Design:** Monitor water flow and system status at a glance with a modern, cylindrical build.
- • **Smart Contaminant Defense:** Diverts initial runoff to protect your water from organic and inorganic debris.
- • **Precision Water Quality Control:** Catch-All Tee ensures only the cleanest rainwater reaches your tank.

## Overview

The First Flush with Catch-All Tee is a high-efficiency rainwater diverter designed for 4" round pipes. Featuring a Catch-All Tee to prevent water skipping, a slow-release auto-draining valve with a funnel design to reduce clogging, and a transparent cylindrical body, it ensures only the highest quality rainwater enters your tank. Easy to install and low maintenance, this system safeguards your water supply by diverting initial runoff contaminants, making it ideal for sustainable rain harvesting setups.

## Description

Discover the next generation of rainwater collection with the Rain Harvesting First Flush with Catch-All Tee! The Catch-All Tee prevents water skipping across the tee until the first flush of water is complete so you only capture the best quality water. The funnel design of the release valve helps water to drain at the rate it's supposed to, and reduces the risk of the diverter becoming clogged. The diverter has a slow-release valve that drains the chamber as it operates, meaning it will always be ready for the next rainfall without your intervention. Boasting an efficient design and forward-thinking customization capabilities, this first flush will prevent both organic and inorganic contaminants getting into your water tank, and ensure a high standard of quality in the final collection tank.

Review: Easy to install, works well. - Awesome! It works well in my rain water catching system.
Review: Very Necessary for Rain Harvesting - Installed on a customer's rain harvesting system... works great!

## Features

- FIRST FLUSH: Protect the integrity of your rainwater by diverting initial runoff through the first flush diverter, equipped with the Catch-All Tee to ensure only the highest quality water is captured.
- CATCH-ALL TEE: This first flush diverter has a Catch-All Tee that prevents water skipping across the tee until the flush is complete, allowing only the highest quality water to flow through to your tank.
- AUTO DRAINING: This first flush diverter features a slow release valve which will automatically drain the chamber while in use, keeping it ready for the next rainfall.
- LOW MAINTENANCE: The release valve includes a unique funnel design, ensuring that water can drain smoothly, reducing the risk of clogging.
- JUST ADD PIPE: The First Flush with Catch All Tee includes everything you need to install - just add 4" pipe for the chamber.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B082BHTMWS |
| Batteries required | No |
| Best Sellers Rank | #150,108 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #125 in Rain Barrels |
| Brand | Rain Harvesting |
| Color | Transparent |
| Customer Reviews | 4.1 4.1 out of 5 stars (69) |
| Global Trade Identification Number | 09317118999203 |
| Item Weight | 3.49 pounds |
| Item model number | WDDP111 |
| Manufacturer | Blue Mountain Co |
| Material | Plastic |
| Package Dimensions | 11 x 11 x 6 inches |
| Shape | Cylindrical |

## Product Details

- **Brand:** Rain Harvesting
- **Color:** Transparent
- **Item Weight:** 1.59 Kilograms
- **Material:** Plastic
- **Shape:** Cylindrical

## Images

![First Flush with Catch-All Tee - First Flush Diverter Kit, Suits 4" Round Pipes - Image 1](https://m.media-amazon.com/images/I/51x4QHrXi8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to install, works well.
*by S***P on July 9, 2025*

Awesome! It works well in my rain water catching system.

### ⭐⭐⭐⭐⭐ Very Necessary for Rain Harvesting
*by S***S on July 15, 2025*

Installed on a customer's rain harvesting system... works great!

### ⭐⭐⭐⭐ Solid system but missing parts
*by B***N on January 13, 2024*

I received this item very quickly however it is missing one somewhat vital part. When I unboxed the item and started accounting for all the parts I found that the flow control valves were not in the box and I was planning on installing this the next day. Fortunately this is a piece I think I can make in my garage.

## Frequently Bought Together

- Rain Harvesting First Flush Plus Downpipe 4" WDDP111
- Leaf Eater Advanced Rain Harvesting RHAD100 Both 3" and 4" Compatible
- IBC Tote Lid Cap with Filter IBC Ton Barrel Caps Water Tank Lids with Pipe

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-08*