---
product_id: 24213862
title: "BV1B/UA Hepvo Waterless Waste Valve 1-1/4\""
brand: "all season marketing"
price: "€ 123.47"
currency: EUR
in_stock: true
reviews_count: 8
category: "All Season Marketing"
url: https://www.desertcart.sk/products/24213862-bv1b-ua-hepvo-waterless-waste-valve-1-1-4
store_origin: SK
region: Slovakia
---

# No gurgling noises No foul odors Freeze-proof self-sealing membrane BV1B/UA Hepvo Waterless Waste Valve 1-1/4"

**Brand:** all season marketing
**Price:** € 123.47
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your plumbing game with the future-proof HepvO valve!

## Quick Answers

- **What is this?** BV1B/UA Hepvo Waterless Waste Valve 1-1/4" by all season marketing
- **How much does it cost?** € 123.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/24213862-bv1b-ua-hepvo-waterless-waste-valve-1-1-4)

## Best For

- all season marketing enthusiasts

## Why This Product

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

## Key Features

- • **Odor-Free Living:** Eliminates sewer smells with innovative self-sealing tech
- • **Silent Operation:** No more disruptive gurgling sounds under your sink
- • **Space-Saving Design:** Low profile fits perfectly in tight or unconventional spaces
- • **Vent-Free Efficiency:** No need for secondary venting, simplifies plumbing setup
- • **Freeze & Evaporation Proof:** Reliable seal without water, no risk of drying or freezing

## Overview

The All Season Marketing BV1B/UA HepvO Waterless Waste Valve is a stainless steel, self-sealing valve that replaces traditional water traps by preventing sewer odors and gurgling noises without relying on water seals. Its innovative membrane design resists evaporation and freezing, making it ideal for tight spaces like RVs and cargo trailers, while eliminating the need for secondary venting.

## Description

HepvO is a self sealing valve designed to close the waste connection below a sanitary fixture to prevent the escape of foul sewer air into the dwelling. HepvO is the innovative hygienic Self Sealing Waste Valve. It replaces the traditional water-seal trap and prevents the escape of foul sewer air from waste discharge systems. Unlike conventional waste traps, HepvO does not rely on trapped water to create a seal. Water seals are prone to failure by Evaporation, Siphonage and other Mechanisms. Instead, HepVo uses a self sealing membrane which performs the same function as a water seal trap but without the risk of depletion or freezing. HepvO actively eliminates negative pressure within the waste system by opening and allowing in fresh air until a state of equilibrium with atmosphere is reached. This means that secondary venting of the waste system via the inclusion of air admittance valves in the waste system is no longer necessary.

Review: Perfect for a cargo trailer conversion - What I like about it. It's low profile and fits perfectly under my cargo trailer conversion project where a traditional P trap would create clearance issues. What I wished I would have known when purchasing the valve is that it doesn't come with 1 1/2" fittings, just 1 1/4". No big deal, but on the Q & A's, someone mentioned that it came with 1 1/2" adapters. It doesn't, but you can pick the adapters up at your local hardware store for a few bucks.
Review: Great for home or RV - I have been using these in an RV for five or six years. They perform flawlessly. Clears up space under a sink or other tight places. For we snowbirds, it is great for replacing the traps back up in the north. No more coming home to dried up p-traps and the resulting aroma. My only question is "why does not every RV come with these things?" Space is so precious in an RV.

## Features

- No Foul Odors
- Hygenic Design
- No "Gurgling" noises
- Easy Flow
- No limescale

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004A2YFG4 |
| Best Sellers Rank | #190,030 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #258 in Faucet Valves |
| Brand | All Season Marketing |
| Customer Reviews | 4.5 4.5 out of 5 stars (208) |
| Date First Available | October 30, 2010 |
| Exterior Finish | painted |
| Global Trade Identification Number | 05027888240354 |
| Inlet Connection Size | 8 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7.8 ounces |
| Item dimensions L x W x H | 8 x 8 x 8 inches |
| Item model number | BV1B/UA |
| Manufacturer | HEPVO |
| Manufacturer Part Number | BV1BUA114 |
| Material | Stainless Steel |
| Model | BV1B/UA |
| Number of Ports | 2 |
| Outlet Connection Size | 8 Inches |
| Outlet Connection Type | FNPT |
| Product Dimensions | 8 x 8 x 8 inches |
| Specification Met | ULC |

## Product Details

- **Brand:** All Season Marketing
- **Exterior Finish:** painted
- **Inlet Connection Size:** 8 Inches
- **Inlet Connection Type:** National Pipe Tapered
- **Item dimensions L x W x H:** 8 x 8 x 8 inches
- **Material:** Stainless Steel
- **Number of Ports:** 2
- **Outlet Connection Size:** 8 Inches
- **Outlet Connection Type:** FNPT
- **Specification Met:** ULC

## Images

![BV1B/UA Hepvo Waterless Waste Valve 1-1/4" - Image 1](https://m.media-amazon.com/images/I/71p9JlMAUsL.jpg)

## Questions & Answers

**Q: Can this be used in under a normal vanity in a house?**
A: Yes. That's exactly where I used it due to space constraints. Couldn't fit a normal P- trap.  Works great.

**Q: Will this equalize grey tank pressure like a vent? Building campervan and can’t easily vent tank outside.**
A: All this is a trap for your shower or sink, not a vent. It is like P trap under your sink or shower to keep odors coming back up sink.  I used one under my shower where I have no room for a P-trap.

**Q: are the adapters shown in picture included?**
A: yes

**Q: Does this have a check valve inside or what method does it use to prevent backflow? What does the interior look like and how much pressure is needed?**
A: Yes, it a check valve, there is a soft tube inside that goes flat and stops on back flow.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for a cargo trailer conversion
*by S***Y on April 30, 2022*

What I like about it. It's low profile and fits perfectly under my cargo trailer conversion project where a traditional P trap would create clearance issues. What I wished I would have known when purchasing the valve is that it doesn't come with 1 1/2" fittings, just 1 1/4". No big deal, but on the Q & A's, someone mentioned that it came with 1 1/2" adapters. It doesn't, but you can pick the adapters up at your local hardware store for a few bucks.

### ⭐⭐⭐⭐⭐ Great for home or RV
*by Z***N on October 28, 2017*

I have been using these in an RV for five or six years. They perform flawlessly. Clears up space under a sink or other tight places. For we snowbirds, it is great for replacing the traps back up in the north. No more coming home to dried up p-traps and the resulting aroma. My only question is "why does not every RV come with these things?" Space is so precious in an RV.

### ⭐⭐⭐⭐⭐ Great Product - Like Everything Else Will Need Maintenance
*by R***T on March 25, 2017*

We replaced all the traps in our RV and have used these in 8 degree weather with no issues. I'm not sure what all the grousing is about but it may be that they are experiencing a mineral build up. We have found that we need to service our traps about every 9 to 12 months of full-time use. If used regularly (monthly) a mixture of baking soda and vinegar poured down the sink seems to do the trick. Used as a pee trap for our Nature's Head toiled, I've found that you need to follow each visit with a spray of vinegar to keep the minerals under control. If you find that minerals still build up, remove the trap and immerse it in a bowl of vinegar over night and then pull a brush gently through the trap until the mineral deposit has been removed. Bottom line, there is never going to be a maintenance-free option for traps. We never experienced a problem with freezing but as another reviewer mentioned, heat tape applied to the trap ought to do the trick. Cheers, B

## Frequently Bought Together

- All Season Marketing BV1B/UA Hepvo Waterless Waste Valve 1-1/4"
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- Valterra A01-2012VP Silver Carded Shower Drain

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**Shop now:** [https://www.desertcart.sk/products/24213862-bv1b-ua-hepvo-waterless-waste-valve-1-1-4](https://www.desertcart.sk/products/24213862-bv1b-ua-hepvo-waterless-waste-valve-1-1-4)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-30*