--- product_id: 275870747 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: "₹ 3171" currency: INR in_stock: true category: "Hlzc" url: https://www.desertcart.in/products/275870747-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink-floor store_origin: IN region: India --- # Flexible, durable silicone build Fits 1.5"–1.75" pipes Automatic odor & backflow blocker Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4) **Brand:** hlzc **Price:** ₹ 3171 **Availability:** ✅ In Stock ## Summary > 🚿 Seal out the stink, let freshness flow! ## 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?** ₹ 3171 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/275870747-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 - • **Odor & Backflow Defense:** Smart one-way valve design blocks sewer gases and prevents unpleasant backflow, keeping your space fresh. - • **Plug & Play Installation:** No tools required—just insert and trim if needed for a seamless, quick setup. - • **Versatile Multi-Room Use:** Ideal for toilets, kitchens, basements, and laundry drains—upgrade your entire home’s air quality. - • **Universal Fit, Zero Hassle:** Adjustable rings ensure perfect seal for standard 1.5" to 1.75" pipes—no guesswork needed. - • **Premium Silicone Durability:** Eco-friendly, stretchable silicone resists deformation and lasts through daily wear and tear. ## Overview This adjustable silicone drain backflow preventer fits standard 1.5" to 1.75" pipes with included rings for a secure fit. Its automatic one-way valve blocks sewer odors and backflow while allowing smooth drainage. Made from durable, eco-friendly silicone, it’s easy to install without tools and perfect for bathrooms, kitchens, basements, and laundry areas—ensuring a fresher, cleaner home 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 ## 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 | | ASIN | B0895NFGCN | | Additional Features | Adjustable | | Best Sellers Rank | #53,091 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #285 in Kitchen Drains & Strainers | | Brand Name | HLZC | | Color | Blue | | Compatible Groove Diameter | 1.5 Inches | | Customer Reviews | 3.9 3.9 out of 5 stars (553) | | Customer reviews | 3.9 3.9 out of 5 stars (553) | | Date First Available | 9 July 2020 | | Finish Types | Brushed | | Global Trade Identification Number | 06221243457657 | | Item Dimensions W x H | 45W x 115H millimeters | | Item Weight | 200 Grams | | Item model number | 4 | | Manufacturer | HLZC | | Manufacturer | HLZC | | Manufacturer Part Number | 4 | | Material Type | Silicone | | Model Number | 4 | | Number of Items | 4 | | Product Dimensions | 4.5 x 4.5 x 11.48 cm; 200 g | | Product Style | Modern | ## Product Details - **Brand:** HLZC - **Colour:** Blue - **Finish type:** Brushed - **Material:** Silicone - **Product dimensions:** 45W x 115H millimeters ## 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) ## Available Options This product comes in different **Color** options. ## 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. ## 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.in/products/275870747-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink-floor](https://www.desertcart.in/products/275870747-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink-floor) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-10-08*