---
product_id: 124022007
title: "Dudley S7 Cascade 9 inch Syphon Siphon WRAS Approved 317556"
brand: "thomas dudley"
price: "235 kr"
currency: DKK
in_stock: true
reviews_count: 1
url: https://www.desertcart.dk/products/124022007-dudley-s7-cascade-9-inch-syphon-siphon-wras-approved-317556
store_origin: DK
region: Denmark
---

# WRAS approved quality Water-saving design 9 inch precision fit Dudley S7 Cascade 9 inch Syphon Siphon WRAS Approved 317556

**Brand:** thomas dudley
**Price:** 235 kr
**Availability:** ✅ In Stock

## Summary

> 🚽 Upgrade your flush game with Dudley’s water-wise syphon!

## Quick Answers

- **What is this?** Dudley S7 Cascade 9 inch Syphon Siphon WRAS Approved 317556 by thomas dudley
- **How much does it cost?** 235 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/124022007-dudley-s7-cascade-9-inch-syphon-siphon-wras-approved-317556)

## Best For

- thomas dudley enthusiasts

## Why This Product

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

## Key Features

- • **Robust Build:** Lightweight yet durable plastic construction ensures long-lasting performance
- • **Easy Installation:** Compact 9 inch size and 38mm outlet diameter simplify fitting and maintenance
- • **Certified Reliability:** WRAS approval guarantees compliance with UK water regulations and safety standards
- • **Eco-Friendly Efficiency:** Convertible 6/7/9 litre capacity optimizes water use, cutting waste and bills
- • **Perfect Fit Replacement:** Seamlessly fits most low-level lever operated cisterns for hassle-free upgrades

## Overview

The Dudley S7 Cascade 9 inch Syphon (model 317556) is a WRAS approved, water-saving replacement syphon designed for most low-level lever operated cisterns. Featuring a 38mm outlet and convertible 6/7/9 litre capacity, it offers efficient water use and easy installation in a lightweight plastic build.

## Description

Thomas Dudley S7 Cascade 9 inch Syphon WRAS approved - 317556. The S7 Cascade toilet siphon is an ideal replacement for syphons in most low level lever operated cisterns. WRAS approved. 38mm (1½") diameter outlet. Water-saving. 6/7/9 litre convertible. Manufacturers Code: 317556

## Features

- 9 inch Syphon
- WRAS approved
- Ideal replacement for syphons in most low level lever operated cisterns
- Water-saving

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Dudley |
| Part Number | 317556 |
| Product Dimensions | 35.2 x 24.8 x 8.6 cm; 340 g |
| Item model number | 317556 |
| Colour | Multicoloured |
| Material | Plastic |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Included Components | 1 x Thomas Dudley S7 Cascade 9 inch Syphon |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 340 g |

## Images

![Dudley S7 Cascade 9 inch Syphon Siphon WRAS Approved 317556 - Image 1](https://m.media-amazon.com/images/I/416WrzM1jZL.jpg)
![Dudley S7 Cascade 9 inch Syphon Siphon WRAS Approved 317556 - Image 2](https://m.media-amazon.com/images/I/51gKmt4WctL.jpg)
![Dudley S7 Cascade 9 inch Syphon Siphon WRAS Approved 317556 - Image 3](https://m.media-amazon.com/images/I/414QdYmOHaL.jpg)
![Dudley S7 Cascade 9 inch Syphon Siphon WRAS Approved 317556 - Image 4](https://m.media-amazon.com/images/I/41u23TL8NSL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Reliable
  

*by D***G on Reviewed in the United Kingdom on 21 October 2021*

Simply the best on the market

---

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**Shop now:** [https://www.desertcart.dk/products/124022007-dudley-s7-cascade-9-inch-syphon-siphon-wras-approved-317556](https://www.desertcart.dk/products/124022007-dudley-s7-cascade-9-inch-syphon-siphon-wras-approved-317556)

---

*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-08*