What size airline ? The one suggested by amazon is too small .

This air stone matches two size air tubes, 3/16 " and 3/8". Wet the airline with water. It might be easier to install.

How many leters per min?

You’re better off with the pawfly 8” cylinder. These deteriorate extremely fast as if the material they used is insufficient.

Yes they do sink. Also check out pawfly 8” cylinders. I tried the synthetic pawfly black 8” and I think its cheaply made so I’ll be sticking with the original blue 8” pawfly airstone cylinders.

Alegi Air Stone Cylinder Bubbler 5 3 Inch 2 Pack

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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€ 21.77

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

ROBUST RELIABLE - Strong shell design prevents damage, ensuring long-lasting performance.
DUAL PACK CONVENIENCE - Two premium air stones included—double the aeration, double the value.
OPTIMIZED OXYGEN FLOW - Enhance aquatic life with consistent, fine bubbles for healthier fish and plants.
EASY MAINTENANCE ROUTINE - Simple soaking and brushing keep your system clog-free and efficient.
UNIVERSAL TUBING COMPATIBILITY - Fits both 3/16” and 3/8” inner diameter tubing for seamless setup.

The ALEGI Air Stone Cylinder Bubbler is a 5.3-inch durable aeration device designed for aquariums, fish tanks, and hydroponic systems. Compatible with 3/16” and 3/8” tubing and requiring a minimum 4W air pump, it delivers consistent oxygenation through fine bubbles. Sold in a convenient 2-pack, it features a strong protective shell and easy maintenance to keep aquatic environments thriving.

Specifications

ASIN	B083NFTMBC
ASIN	B083NFTMBC
Best Sellers Rank	#33,566 in Pet Supplies ( See Top 100 in Pet Supplies ) #94 in Aquarium Air Pump Accessories
Brand Name	ALEGI
Color	Grey
Customer Reviews	4.4 4.4 out of 5 stars (906)
Date First Available	January 8, 2020
Date First Available	January 8, 2020
Included Components	2 x Aquarium bubble stones
Item Package Dimensions L x W x H	7.24 x 3.78 x 1.65 inches
Item Weight	12 ounces
Manufacturer	Alegi
Manufacturer	Alegi
Number of Items	2
Package Dimensions	7.24 x 3.78 x 1.65 inches; 11.99 ounces
Size	5.3 inch
Specific Uses for Product	aquarium, fish tank, hydroponics

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