---
product_id: 37160694
title: "Aquarium 4 Inch Air Stone, Fish Tank Airstone Bubble Diffuser for Air Pumps Buckets Fish Tanks Ponds DWC Reservoirs and Circulation"
brand: "pawfly"
price: "¥3230"
currency: JPY
in_stock: true
reviews_count: 10
category: "Pawfly"
url: https://www.desertcart.jp/products/37160694-aquarium-4-inch-air-stone-fish-tank-airstone-bubble-diffuser
store_origin: JP
region: Japan
---

# 12 L/min airflow 7 oz weight for stability High-temp sintered mineral Aquarium 4 Inch Air Stone, Fish Tank Airstone Bubble Diffuser for Air Pumps Buckets Fish Tanks Ponds DWC Reservoirs and Circulation

**Brand:** pawfly
**Price:** ¥3230
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your aquarium’s vibe with bubbles that mean business!

## Quick Answers

- **What is this?** Aquarium 4 Inch Air Stone, Fish Tank Airstone Bubble Diffuser for Air Pumps Buckets Fish Tanks Ponds DWC Reservoirs and Circulation by pawfly
- **How much does it cost?** ¥3230 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/37160694-aquarium-4-inch-air-stone-fish-tank-airstone-bubble-diffuser)

## Best For

- pawfly enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Fit:** Optimized for 10-60 gallon tanks, ponds, and DWC systems—your aquatic ecosystem’s best friend.
- • **Bubble Powerhouse:** Generates dense, oxygen-rich bubbles to supercharge aquatic vitality.
- • **Rock-Solid Stability:** Weighted design with suction cups ensures it stays perfectly positioned.
- • **Health-First Material:** Crafted from mineral material sintered at high temperature—safe for fish and plants.
- • **Effortless Maintenance:** Simple soak and brush clean routine keeps bubbles flowing and fish thriving.

## Overview

The Pawfly 4 Inch Air Stone delivers a powerful 12 L/min airflow through durable, high-temperature sintered mineral material, ensuring safe and efficient oxygenation for aquariums, ponds, and hydroponic systems. Its 7 oz weight and suction cups guarantee stable placement, while its compatibility with 10-60 gallon tanks makes it a versatile, must-have diffuser for vibrant aquatic life.

## Description

desertcart.com : Pawfly Aquarium 4 Inch Air Stone, Fish Tank Airstone Bubble Diffuser for Air Pumps Buckets Fish Tanks Ponds DWC Reservoirs and Circulation : Pet Supplies

Review: Good quality aeration stones. Produces a lot of bubbles with the right pump. - 2”, 4” and 5” legit really good aerator stones. Produces tons of bubbles with a 12 volt pump. The 8” was a dud, a pos. Maybe I got a bad one? Large bubbles escaped on one side only.
Review: Works for my live well - I use this to keep my eels alive in between fishing trips. It works better than a small round stone. They swim through it and seems like they are happy.

## Features

- Medium Bubbles: The air stone can produces abundant dense bubbles to aerate your water reservoirs. A great way to increase oxygen solubility in your aquarium and enliven the aquatic lives.
- Model: ASD100; Jetting volume: 12 L/min; Recommended air pump power: > 4 W; Inner diameter of tubing: 3/16" or 3/8". Great for aquariums, DWC systems or ponds. (Fit Tanks of 10-60 Gal)
- Reliable Material: Made of mineral material and sintered at a high temperature, it causes no effect to the health of your aquatics. Keep fish or roots growing healthily.
- Stable in Water: Measures 4.1" D x 0.7" H and weighs 7 oz, which helps it sink to the bottom easily. And the 3 suction cups tightly suck the tank to make it sit stably in water.
- Easy to Use: Soak the stone completely in water for 1 hour before use. Clean it regularly with a brush as it gets clogged after weeks or months of usage.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01M9DL67H |
| Air Flow Capacity | 12 liters per minute |
| Best Sellers Rank | #24,360 in Pet Supplies ( See Top 100 in Pet Supplies ) #61 in Aquarium Air Pump Accessories |
| Brand | Pawfly |
| Brand Name | Pawfly |
| Color | Grey |
| Customer Reviews | 4.3 out of 5 stars 3,075 Reviews |
| Item Dimensions L x W x H | 4"L x 4"W x 1"H |
| Item Weight | 7.04 ounces |
| Manufacturer | Pawfly |
| Manufacturer Part Number | Naludo-NL127 |
| Material | Mineral |
| Material Type | Mineral |
| Model Number | Naludo-NL127 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Operation Mode | Manual |
| Power Source | No |
| Product Dimensions | 4"L x 4"W x 1"H |
| UPC | 712383629043 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Pawfly
- **Color:** Grey
- **Item Weight:** 7.04 ounces
- **Material:** Mineral
- **Product Dimensions:** 4"L x 4"W x 1"H

## Images

![Aquarium 4 Inch Air Stone, Fish Tank Airstone Bubble Diffuser for Air Pumps Buckets Fish Tanks Ponds DWC Reservoirs and Circulation - Image 1](https://m.media-amazon.com/images/I/81GqYDuXezL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality aeration stones. Produces a lot of bubbles with the right pump.
*by T***E on July 23, 2026*

2”, 4” and 5” legit really good aerator stones. Produces tons of bubbles with a 12 volt pump. The 8” was a dud, a pos. Maybe I got a bad one? Large bubbles escaped on one side only.

### ⭐⭐⭐⭐⭐ Works for my live well
*by M***S on August 3, 2026*

I use this to keep my eels alive in between fishing trips. It works better than a small round stone. They swim through it and seems like they are happy.

### ⭐⭐⭐⭐ Should work for a more powerful airpump
*by V***G on August 1, 2024*

I saw some reviews saying half the stone didn't work, but I hoped for the best and purchased this product anyways. Lo and behold, when I plugged my new air stone into my 4 watt air pump, only half the stone bubbled, but the bubbles were great bubbles. Credit where credit is due. Now looking into the matter, the instruction manual claims that if only half the air stone works, then the problem is with the air pump not being strong enough. I guess my aforementioned air pump with a power of 4 watts was simply not enough. The details of this product recommend use with an air pump of > 4 watts. > is not >= I guess, and I can't say I didn't see this happening because I was warned. So yeah, unless your air pump power is greater than 4 watts, the air stone won't bubble completely, and it's a lowkey weird look. The suction cups are great though, and really hold the stone in place.

## Frequently Bought Together

- Pawfly Aquarium 4 Inch Air Stone, Fish Tank Airstone Bubble Diffuser for Air Pumps Buckets Fish Tanks Ponds DWC Reservoirs and Circulation
- PENN-PLAX Standard Airline Tubing for Aquariums – Clear and Flexible – Resists Kinking – Safe for Freshwater and Saltwater Fish Tanks – 8 Feet
- Tetra Whisper Easy to Use Air Pump for Aquariums (Non-UL)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-19*