---
product_id: 316066185
title: "Marina Plastic Check Valve/Non Return Valve"
brand: "marina"
price: "9.50 OMR"
currency: OMR
in_stock: true
reviews_count: 5
category: "Marina"
url: https://www.desertcart.com.om/products/316066185-marina-plastic-check-valve-non-return-valve
store_origin: OM
region: Oman
---

# Prevents water back siphoning Minimal airflow restriction Durable plastic construction Marina Plastic Check Valve/Non Return Valve

**Brand:** marina
**Price:** 9.50 OMR
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your aquarium flowing flawlessly—no backflow, no worries!

## Quick Answers

- **What is this?** Marina Plastic Check Valve/Non Return Valve by marina
- **How much does it cost?** 9.50 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/316066185-marina-plastic-check-valve-non-return-valve)

## Best For

- marina enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from durable plastic for long-term, worry-free performance.
- • **Streamlined Airflow Design:** Ensures your aquarium’s air supply stays strong with minimal resistance.
- • **Trusted Aquarium Essential:** Join thousands of aquarists who rely on Marina’s proven check valve.
- • **Backflow Blocker Extraordinaire:** Safeguards your pump from costly water damage and back siphoning.
- • **Easy Installation, Instant Protection:** Simple barb connectors fit standard tubing for quick setup.

## Overview

The Marina Plastic Check Valve (Model A1165) is a durable swing check valve designed to prevent water from siphoning back into air pumps, protecting your aquarium equipment during power outages or maintenance. Featuring minimal airflow restriction and easy barb-type connections, it ensures reliable, long-lasting performance for any aquarium setup.

## Description

Product Description The Marina Check Valve prevents water from siphoning out of the aquarium through the air hose and into the air pump in the event of a power failure or when removing filters and other air-driven accessories from the aquarium. Set Contains: 1 x Valve

Review: Works fine. Watch how you install.
Review: Excelente, la mejor ! - Hace su funcion perfectamente en sistema de Co2. El agua llega hasta la valvula y esta no pasa, extraño que la valvula se llena de agua tambien, pero se drena rapido al encender el co2. Funciona como ninguna otra, estupendo producto que a ver si dura .

## Features

- Protects pumps from water back siphoning.
- Minimal air flo restriction
- Durable
- Model Number:A1165

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002AQIAO |
| Best Sellers Rank | #17,443 in Pet Supplies ( See Top 100 in Pet Supplies ) #844 in Aquarium Accessories |
| Brand | Marina |
| Brand Name | Marina |
| Connector Type | Barb |
| Customer Reviews | 4.5 out of 5 stars 584 Reviews |
| Exterior Finish | Plastic |
| Exterior finish | Plastic |
| Global Trade Identification Number | 00015561111652 |
| Inlet Connection Size | 2.8 Inches |
| Inlet Connection Type | Barb |
| Inlet connection size | 2.8 Inches |
| Inlet connection type | Barb |
| Item Dimensions | 13 x 71 x 127 millimeters |
| Item dimensions L x W x H | 13 x 71 x 127 millimeters |
| Manufacturer | R C Hagen UK Ltd |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | A1165 |
| Outlet Connection Size | 0.25 Inches |
| Outlet Connection Type | Barb |
| Size | 1 Count (Pack of 1) |
| Specification Met | CE |
| Thread Size | 0.5 pulgadas |
| Thread Type | PTF, Beard |
| UPC | 015561111652 |
| Unit Count | 1 Count |
| Valve Type | Swing Check Valve |

## Product Details

- **Material:** Plastic
- **Brand:** Marina
- **Item dimensions L x W x H:** 0.5 x 2.8 x 5 inches
- **Exterior Finish:** Plastic
- **Inlet Connection Size:** 0.5 Inches
- **Inlet Connection Type:** Barb
- **Outlet Connection Type:** FNPT
- **Outlet Connection Size:** 0.5 Inches
- **Specification Met:** ASME, NSF, ANSI, UPC, CE
- **Global Trade Identification Number:** 00015561111652

## Images

![Marina Plastic Check Valve/Non Return Valve - Image 1](https://m.media-amazon.com/images/I/61JzmyMQ9EL.jpg)
![Marina Plastic Check Valve/Non Return Valve - Image 2](https://m.media-amazon.com/images/I/81E7H+m81tL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works fine. Watch how you install.
*by C***G on 20 October 2018*



### ⭐⭐⭐⭐⭐ Excelente, la mejor !
*by J***N on 7 July 2025*

Hace su funcion perfectamente en sistema de Co2. El agua llega hasta la valvula y esta no pasa, extraño que la valvula se llena de agua tambien, pero se drena rapido al encender el co2. Funciona como ninguna otra, estupendo producto que a ver si dura .

### ⭐⭐⭐⭐⭐ One of the best
*by S***E on 1 August 2025*



## Frequently Bought Together

- Marina Plastic Check Valve/ Non Return Valve
- 5 metre of AQUARIUM air line,fish tank airline(4/6MM) BY CRISTALLO®
- Tetra APS 150 Smooth-running aquarium air pump, black

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**Shop now:** [https://www.desertcart.com.om/products/316066185-marina-plastic-check-valve-non-return-valve](https://www.desertcart.com.om/products/316066185-marina-plastic-check-valve-non-return-valve)

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-06*