--- product_id: 242079799 title: "Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4)" brand: "hlzc" price: "₱3945" currency: PHP in_stock: true reviews_count: 5 category: "Hlzc" url: https://www.desertcart.ph/products/242079799-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink-floor store_origin: PH region: Philippines --- # Flexible, durable silicone Fits 1.5"–1.75" pipes Backflow & odor prevention Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4) **Brand:** hlzc **Price:** ₱3945 **Availability:** ✅ In Stock ## Summary > 🚿 Seal the deal on freshness—never let backflow cramp your style! ## Quick Answers - **What is this?** Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4) by hlzc - **How much does it cost?** ₱3945 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/242079799-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink-floor) ## Best For - hlzc enthusiasts ## Why This Product - Trusted hlzc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Installation:** No tools, no fuss—just insert and trim for a flawless fit in minutes. - • **Versatile Home Essential:** Ideal for bathrooms, kitchens, basements, and laundry—say goodbye to unpleasant smells everywhere. - • **Universal Fit, Zero Hassle:** Adjustable rings ensure perfect seal for 1.5" to 1.75" pipes—no guesswork needed. - • **Odor Blocker Extraordinaire:** Automatic shut-off design locks out sewer gases, keeping your space fresh and inviting. - • **Silicone Strength Meets Flexibility:** Eco-friendly, stretchable silicone resists deformation and adapts to your drain’s shape. ## Overview The HLZC Drain Backflow Preventer is a high-quality, adjustable silicone valve designed to fit standard 1.5" to 1.75" pipes. It prevents sewer gas backflow and odors with an automatic shut-off mechanism, while its flexible, durable silicone construction ensures long-lasting performance. Easy to install with included rings and trim-to-fit design, it’s perfect for bathrooms, kitchens, basements, and laundry areas seeking a fresh, odor-free environment. ## Description How to install it? Installation is very simple. Plug and play. Where can it be installed? It can be installed in floor drains or sewer pipes. For example: shower drain, basement drain, bathroom sink, kitchen sink, bathtub drain, laundry floor drain or sewer pipe, etc. Can it be installed in a 1.75-inch diameter ABS pipe? Of course. It is suitable for standard 1 1/2” to 1 3/4" pipe. Is it possible to fall into the sewer? It comes with a plastic enlarge adapter and a plastic retainer ring. If there is a gap after installation, you can also use Teflon tape to fix it in place. So please don't worry, there will be no risk of falling. Installation Guide: 1. Please measure precisely the internal diameter of drain opening, in case any inconvenience brought by unmatched size. 2. Because the stickiness and softness feature of silicone, make sure support apart the open of drain grate with your hands in the first installation for the smooth draining. Package Contains: 4 x Silicone Drain Backflow Preventer 4 x Enlarge Rings 4 x Retainer Rings Review: Es muy fácil de instalar y hasta ahora cumple muy bien su función - Se instala muy rápido Review: bon - C'était un produit pour mon frère. Idéal pour lui. Ça fait le travail pour l'urinoir de son commerce. Depuis plusieurs mois qu'il a installé ce produit. Il aime. Plus d'odeur désagréable. La quantité était un peu énorme. ## Features - It is suitable for standard 1 1/2” to 1 3/4" pipe. Please measure the pipes you want to use before buying to ensure that you can buy a suitable floor drain. There are two fixed rings that can meet the different needs of large and small pipes. - The automatic shut-off design allows it to prevent odor and peculiar smell from the sewage gas; block the backflow of sewer; and it can also allow the water to easily drain. - The installation is very simple, just put it directly into the sewer pipe. If the silicone part is too long, you can trim the flat bottom to achieve quick drainage. - The floor drain is made of high-quality silicone, which is environmentally friendly, durable, stretchable without worrying about deformation, and super flexible. - It is suitable for most toilets, bathrooms, kitchens, basements and washing machine sewers. After installation, you will no longer have peculiar smells in your room. Fresh air and enjoy a good life. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0895NFGCN | | Best Sellers Rank | 316,796 in DIY & Tools ( See Top 100 in DIY & Tools ) 889 in Bathroom Sink Taps | | Brand | HLZC | | Brand Name | HLZC | | Colour | Blue | | Compatible Groove Diameter | 4 Centimeters | | Customer Reviews | 4.0 out of 5 stars 729 Reviews | | Finish Type | Brushed | | Finish type | Brushed | | Global Trade Identification Number | 06221243457657 | | Included Components | NO | | Item Dimensions W x H | 45W x 115H millimetres | | Item Weight | 200 Grams | | Manufacturer | HLZC | | Manufacturer Part Number | 4 | | Material | Silicone | | Material Type | Silicone | | Model Number | 4 | | Number of Items | 10 | | Product Style | Modern | | Product dimensions | 45W x 115H millimetres | | Special Features | Adjustable | | Special feature | Adjustable | | Unit Count | 4.0 count | ## Product Details - **Brand:** HLZC - **Colour:** Blue - **Finish type:** Brushed - **Material:** Silicone - **Product dimensions:** 45W x 115H millimetres ## Images ![Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4) - Image 1](https://m.media-amazon.com/images/I/61HyIDV3eIS.jpg) ![Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4) - Image 2](https://m.media-amazon.com/images/I/51GCnzX2OKS.jpg) ![Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4) - Image 3](https://m.media-amazon.com/images/I/61Rf+niohxS.jpg) ![Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4) - Image 4](https://m.media-amazon.com/images/I/51UMs+KL4OS.jpg) ![Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4) - Image 5](https://m.media-amazon.com/images/I/51h7fts2xjS.jpg) ## Questions & Answers **Q: Would this be effective for a vent Backdraft. Would it flap and be noisy with air pushed through it?** A: I think this should not be effective for a vent Backdraft. Of course you can also try it. **Q: Does this fit standard US sink drains and showers ?** A: Hello, you need to measure the opening of your drains. This fits 1 1/2" to 1 3/4" drain opening. **Q: Will this stop water backflow?** A: The bottom of this floor drain is closed, which can stop water backflow **Q: How much air pressure does it take to activate airflow for waterless checkvalve vent?** A: It needs normal or mild air pressure. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Es muy fácil de instalar y hasta ahora cumple muy bien su función *by E***. on 3 November 2022* Se instala muy rápido ### ⭐⭐⭐⭐⭐ bon *by F***N on 12 October 2025* C'était un produit pour mon frère. Idéal pour lui. Ça fait le travail pour l'urinoir de son commerce. Depuis plusieurs mois qu'il a installé ce produit. Il aime. Plus d'odeur désagréable. La quantité était un peu énorme. ### ⭐⭐⭐⭐⭐ حلوة *by A***M on 12 October 2025* ممتازة كجودة ## Frequently Bought Together - HLZC Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4) - Shower Floor Drain Backflow Preventer Valve Sewer Core Drainage Insert Drain Plug Hair Catcher Gas Sealer Floor Strainer Trap Seal (Blue-2Pack) - COLDDD 2Pcs Odor Proof Floor Drain, Floor Drain backflow Preventer, Shower Plug, Magnetic One-Way Drain Valve, Prevent Odor Dispersion in Bathrooms, and Kitchens (1.5''-2.0'' Caliber) --- ## 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.ph/products/242079799-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink-floor](https://www.desertcart.ph/products/242079799-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink-floor) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-06-24*