--- product_id: 48146647 title: "SIAMP 30996007 99B 1/2-Inch Plastic Inlet Valve - White | WRAS Compliant, Bottom Entry Cistern Compatible, 0.5-10 Bar Pressure, Adjustable Water Level, Quiet Fill" brand: "siamp" price: "R1037" currency: ZAR in_stock: true reviews_count: 12 url: https://www.desertcart.co.za/products/48146647-siamp-30996007-99b-1-2-inch-plastic-inlet-valve-white store_origin: ZA region: South Africa --- # Quiet fill with hydraulic closure Universal threaded 1/2-inch inlet 0.5-10 bar pressure range SIAMP 30996007 99B 1/2-Inch Plastic Inlet Valve - White | WRAS Compliant, Bottom Entry Cistern Compatible, 0.5-10 Bar Pressure, Adjustable Water Level, Quiet Fill **Brand:** siamp **Price:** R1037 **Availability:** ✅ In Stock ## Summary > 🚿 Upgrade your flush game with silent precision! ## Quick Answers - **What is this?** SIAMP 30996007 99B 1/2-Inch Plastic Inlet Valve - White | WRAS Compliant, Bottom Entry Cistern Compatible, 0.5-10 Bar Pressure, Adjustable Water Level, Quiet Fill by siamp - **How much does it cost?** R1037 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/48146647-siamp-30996007-99b-1-2-inch-plastic-inlet-valve-white) ## Best For - siamp enthusiasts ## Why This Product - Trusted siamp brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Easy Installation:** Includes optional collar for versatile button fitment on lid holes from 16mm to 50mm. - • **Adjustable Water Level:** Customize your cistern’s water level for optimal efficiency and water savings. - • **Universal Compatibility:** Fits bottom entry cisterns from top brands like Vitra, Twyford, Lecico, and Roca effortlessly. - • **Whisper-Quiet Operation:** Hydraulic closure ensures a silent fill, eliminating disruptive noises in your space. - • **Precision Pressure Control:** Operates seamlessly from 0.5 to 10 bar for reliable water flow every time. ## Overview The SIAMP 30996007 99B is a WRAS-approved, 1/2-inch plastic bottom entry inlet valve designed for quiet, efficient water filling in ceramic or plastic cisterns. It supports operating pressures from 0.5 to 10 bar, features hydraulic closures for noise reduction, and offers adjustable water levels. Compatible with major brands and includes an optional collar for flexible installation. ## Description The bottom entry inlet valve can be installed into ceramic or plastic cisterns, as a replacement for a pre-installed products from Vitra, Twyford, Lecico, Roca and many more. Compact design with hydraulic closure, anti-backflow function. Operating pressure from 0.5 to 10 bar. Supplied with an optional collar to raise the button from the lid. When fitted without collar the button is compatible with lid hole diameters from 39mm to 42mm, when fitted with the collar the button is compatible with lid hole diameters from 16mm to 50mm. ## Features - WRAS Approved - Suitable for bottom entry cisterns - Operating pressure from 0.5 to 10 bar - Adjustable water level - Quiet fill, with hydraulic closures ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B00BJK4KHY | | Best Sellers Rank | 13,371 in DIY & Tools (See Top 100 in DIY & Tools) 39 in Toilet Parts | | Brand | SIAMP | | Connector Type | Threaded | | Customer Reviews | 4.6 4.6 out of 5 stars (1,330) 4.6 out of 5 stars | | Exterior Finish | Plastic | | Global Trade Identification Number | 03247230012824 | | Included Components | 1 x Siamp 99B Bottom Entry Inlet Float Valve 1/2 inch 15mm Plastic 30996007 | | Inlet Connection Size | 15 Millimeters | | Inlet Connection Type | Threaded | | Item Dimensions | 7.5 x 5.5 x 33 centimetres | | Item Type Name | 99B Bottom Entry Inlet Float Valve 1/2 inch 15mm Plastic 30996007 | | Manufacturer | Siamp | | Manufacturer Warranty Description | Not applicable. | | Material | Plastic | | Maximum Pressure | 10 Bars | | Model Number | 30996007 | | Number Of Items | 1 | | Number Of Packs | 1 | | Number Of Pieces | 1 | | Number Of Ports | 1 | | Outlet Connection Size | 0.5 Inches | | Outlet Connection Type | Threaded | | Part Number | 30996007 | | Size | 1/2 inch | | Specification Met | CE, RoHS | | Thread Size | M15 | | Thread Type | Threaded | | Unit Count | 1.0 count | | Upc | 798256152504 | | Valve Type | Float Valve | ## Product Details - **Brand:** SIAMP - **Exterior finish:** Plastic - **Inlet connection size:** 15 Millimeters - **Inlet connection type:** Threaded - **Item dimensions L x W x H:** 7.5 x 5.5 x 33 centimetres - **Material:** Plastic - **Maximum operating pressure:** 10 Bars - **Number of ports:** 1 - **Outlet connection size:** 0.5 Inches - **Outlet connection type:** Threaded ## Images ![SIAMP 30996007 99B 1/2-Inch Plastic Inlet Valve - White | WRAS Compliant, Bottom Entry Cistern Compatible, 0.5-10 Bar Pressure, Adjustable Water Level, Quiet Fill - Image 1](https://m.media-amazon.com/images/I/61mr38VvTPL.jpg) ## Questions & Answers **Q: What size is the thread at the bottom where the water comes in please, ive measured mine and its about 20mm** A: 1/2 thread **Q: does this replace the inlet valves with the ballon the end? so no need for the ball float** A: There is no need for a ball float. The float is the big plastic piece and its position can be adjusted. This inlet valve would normally replace an inlet valve with ball float, given that the basin dimensions can accommodate it. **Q: Is the inlet 1/2"bsp (21mm) or is it 3/8" bsp (16.67mm)?** A: It says on the inlet float valve it`s 1/2in.. 15mm plastic. **Q: What’s the outside diameter of the bottom screw thread part?** A: I`d say a Quarter of an inch. You will easy see when you take the old one off. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Exactly What I Needed *by on Reviewed in the United Kingdom 28 April 2026* This was just a perfect replacement to replace my original Siamp silient fill inlet valve very easy to install the only noise is the original flush , no power needed just spanners ,and easy to adjust the fill height of cistern hope it lasts as long as my last one. ### ⭐⭐⭐⭐⭐ Easy to fit *by on Reviewed in the United Kingdom 29 July 2026* These are very easy to fit and available to be delivered the next day.Used to keep one in stock but with prime delivery there’s no need ### ⭐⭐⭐⭐ Replacement *by on Reviewed in the United Kingdom 8 December 2025* Nice and small works fine ## Frequently Bought Together - SIAMP 99B Bottom Entry Inlet Float Valve 1/2 inch 15mm Plastic 30996007, White - Pack of 3 Replacement Rubber Ball Valve Washers - Fits All Siamp Fill Valves - 2 x SIAMP Diaphragm Inlet Float Valve Washer, Rubber, 95 95L 99T 99B 99 Duravit Laufen Twyford --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/48146647-siamp-30996007-99b-1-2-inch-plastic-inlet-valve-white](https://www.desertcart.co.za/products/48146647-siamp-30996007-99b-1-2-inch-plastic-inlet-valve-white) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-08-27*