---
product_id: 113761535
title: "Shower Floor Drain Backflow Preventer, Waterless Trap Seal, One Way Drain Valve Sewer Core (1.28-1.58 inch, Blue)"
brand: "timebetter"
price: "9.57 OMR"
currency: OMR
in_stock: true
reviews_count: 8
category: "Timebetter"
url: https://www.desertcart.com.om/products/113761535-shower-floor-drain-backflow-preventer-waterless-trap-seal-one-way
store_origin: OM
region: Oman
---

# 1.28-1.58 inch fit range One-way automatic open-close valve Silicone trap seal blocks odors & pests Shower Floor Drain Backflow Preventer, Waterless Trap Seal, One Way Drain Valve Sewer Core (1.28-1.58 inch, Blue)

**Brand:** timebetter
**Price:** 9.57 OMR
**Availability:** ✅ In Stock

## Summary

> 🚿 Seal in freshness, flush out the funk—upgrade your drain game today!

## Quick Answers

- **What is this?** Shower Floor Drain Backflow Preventer, Waterless Trap Seal, One Way Drain Valve Sewer Core (1.28-1.58 inch, Blue) by timebetter
- **How much does it cost?** 9.57 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/113761535-shower-floor-drain-backflow-preventer-waterless-trap-seal-one-way)

## Best For

- timebetter enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Application:** Ideal for bathrooms, kitchens, basements, garages—anywhere foul smells threaten your space.
- • **Dual Protection Barrier:** Catches hair & debris while preventing backflow of odors and harmful sewer gases.
- • **Eco-Friendly Durability:** Made from premium silicone for long-lasting, maintenance-free performance that safeguards health.
- • **Effortless Installation:** Fits existing drains without modification—plug & play convenience for busy pros.
- • **Smart Gravity-Driven Valve:** V-shaped silicone design ensures smooth drainage while sealing off sewer gases automatically.

## Overview

The Shower Floor Drain Backflow Preventer is a high-quality silicone one-way valve designed to fit 1.28-1.58 inch drains. It automatically opens to allow water flow and closes to block sewer odors, hair, debris, and pests. Easy to install without altering existing plumbing, it’s perfect for bathrooms, kitchens, and other spaces prone to drain smells. Durable, eco-friendly, and maintenance-free, it ensures a fresher, healthier environment.

## Description

STOP SMELLY DRAINS! CHOOSE HEALTHY BREATHING! Made of a flexible, high quality silicone, Floor Drain Backflow Preventer Seal is a permanent and maintenance free, one-way valve that is easily retro-fitted into drains and floor wastes to stop sewer smells and unhealthy things.What you will get ? 2 * Silicone Drain Backflow Preventer 2 * Stainless steel mesh (large size and small size) 2 * Stainless steel ring (large one use as diameter enlarge ring, small one use as retainer ring) 1 * Silicone ring (use for enlarge the diameter) 1 * Teflon tape Not all the parts be installed at same time, we offer more just for making your installing easy and convenient, in order to match different install situation.Installation guide: 1. Please measure precisely the internal diameter of the drain mouth, in case any inconvenience brought by unmatched size 2. Measure the depth of the tube 3. Install the floor drain one way valve 4. Because the stickiness and softness feature of silicone, make sure support apart the mouth of drain grate with your hands in the first installation for the smooth draining.

Review: A LIFESAVER!!! - I bought a 120 year old farmhouse and in the garage, it has drains in the floor. However, this was the era before traps were put in these floor drains and as such, the smell was overwhelming. I saw these and wondered if they would really work. Seriously, I cannot say enough good things about this little gadget. It worked PERFECTLY! I really wondered if it would stop the smell, yet let water flow. Both happen flawlessly. Just be sure your order the correct size and when you insert it into the drain, be sure you don't get it curled. Even if your pipe curves like mine, it still will work. Just gently lay it in so the back flow preventer follows the contour. It will stop any and all sewer gas and smells instantly! I have poured a few gallons of water down to test it and the water flows without any restriction. This is one of the smallest things that has brought so much relief. Definite 5/5 star indeed.
Review: Great fit - Quality better than expected. Fits great in off sized drain. No impairment of water flow. Works very well that minimizing drain odors and keeping bugs out.

## Features

- NEW SOLUTION FOR SEWER DRAINAGE - Our floor drain trap seal core is your new choice for drain trouble. It is easy installation, with no alteration to existing outlets. Let you stay away from bad smell.
- AUTOMATICLLY OPEN-CLOSE DESIGN - Make full use of gravity theory and silicone speciality, the floor drain filter is designed to V cup shape, ensuring the smooth draining, automatically close after drain.
- PRACTICAL DRAIN BACKFLOW PREVENTER - 1. Used as drain strainer to catch hair and debris. 2. Prevent unhealthy things come from sewer.
- WIDE RANGE OF APPLICATIONS - As sewer is connected with the underground septic tank, unhealthy things may enter room from smelly drain. So it is necessary to install drain seals in bathroom, kitchen, toilet, shower room, basement, garage, laundry room.
- The body of the grate seal is made of good quality silicone, environmental-friendly material. Safeguard to your family health.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | timebetter |
| Color | Blue |
| Finish Type | silicone-coated |
| Material | Silicone |
| Special Feature | Environmental-friendly |
| Style | Modern |

## Product Details

- **Brand:** timebetter
- **Color:** Blue
- **Finish Type:** silicone-coated
- **Material:** Silicone
- **Special Feature:** Environmental-friendly

## Images

![Shower Floor Drain Backflow Preventer, Waterless Trap Seal, One Way Drain Valve Sewer Core (1.28-1.58 inch, Blue) - Image 1](https://m.media-amazon.com/images/I/51xCCX1TAvL.jpg)

## Questions & Answers

**Q: How to install? I feel hopeless? A video or something**
A: Please refer to the install photo or send us email with more details, we will offer detailed steps.

**Q: Hello. How often will it need to be replaced: every year, every few years?**
A: Hi Terence P.,
Normally you need remove the hair and clean the blue core regularly (like two weeks or one month, it depends on usage). For the replacement, we believe that 1 year is better, but maxmium less than 2 years, even it is on good condition. Excessive bacteria are difficult to remove.

**Q: I have a two inch shower drain.  Which one do i purchase**
A: Hi, please select 1.72-2 inch, Blue

**Q: My shower drain has 2 inches inner diameter. Do you have any product will fit? Though u hv 1.92 inches outer dia. meant for 2”. I doubt it will work.**
A: Hello, the 1.72-2 inches would help. It comes with enlarge adapter and teflon tape, which can assist you to fit a 2 inches inner diameter drain.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A LIFESAVER!!!
*by W***E on November 20, 2022*

I bought a 120 year old farmhouse and in the garage, it has drains in the floor. However, this was the era before traps were put in these floor drains and as such, the smell was overwhelming. I saw these and wondered if they would really work. Seriously, I cannot say enough good things about this little gadget. It worked PERFECTLY! I really wondered if it would stop the smell, yet let water flow. Both happen flawlessly. Just be sure your order the correct size and when you insert it into the drain, be sure you don't get it curled. Even if your pipe curves like mine, it still will work. Just gently lay it in so the back flow preventer follows the contour. It will stop any and all sewer gas and smells instantly! I have poured a few gallons of water down to test it and the water flows without any restriction. This is one of the smallest things that has brought so much relief. Definite 5/5 star indeed.

### ⭐⭐⭐⭐⭐ Great fit
*by K***M on July 2, 2025*

Quality better than expected. Fits great in off sized drain. No impairment of water flow. Works very well that minimizing drain odors and keeping bugs out.

### ⭐ not worth it, causes slow drainage
*by A***R on January 31, 2023*

I bought 2 of these and installed them in 2 different showers because roaches kept coming out of the drain. But the problem is that they cause the water to drain too slowly. If the valve is not trimmed, then the water will not drain on its own until it's about 1-2" inches deep, which is unacceptable in a stand-up shower (i.e. not a bathtub). I kept trimming the valves to be shorter and shorter, hoping it would take less water pressure for them to open up and let the water drain, but it didn't help. I was regularly poking a pencil into the shower drain to open it up. Because they slow the drainage, it causes more sticky gunk and hair to build up and the drain became clogged. Ultimately the drain and shower was much grosser with the valve than without. I ended up removing both valves after a few months.

## Frequently Bought Together

- Shower Floor Drain Backflow Preventer, Waterless Trap Seal, One Way Drain Valve Sewer Core (1.28-1.58 inch, Blue)
- HLZC Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4)
- Fermus Shower Floor Drain Insert Drain Plug Anti-Odor Plug Sewer Core One Way Drain Valve Backflow Preventer for Basement Drain, Suitable for Drain Tube 1.25-1.65in, Minimum Drain Depth 2in (Gold)

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-11*