These are excellent air difusers that have very low resistance and uniform porosity.These will last for years without clogging up like others.They are easily cleaned in a solution of bleach and water.For tough build up they can you can clean them with muriatic acid and it won't hurt the difuser.They are excellent to use in corner filters and sponge filters for better flow and aeration.There is no need to weigh these down they stay on the bottom by themself.
Aqua-mist Shaped Airstones:
These come in 4 useful shapes and airate with milions of bubbles.
For Photo:
1" Cube Airstone: $.60 Each
7/8" Sphere Airstone: $.50 Each
1 3/16" Sphere Airstone: $.60 Each
7/16" Cylinder Airstone: $.25 Each
Aqua-mist Extra Large Airstone:
These create millions of bubbles.
For Photo:
1 3/4" x 1 3/16" Cylinder Airstone: $.70 Each
Deluxe Bubble Disks:
These disks come in 3 useful sizes and look like a volcano of bubbles.
For Photo:
For Photo:
3 Inch Bubble Disk: $2.50 Each
4 Inch Bubble Disk: $3.10 Each
5 Inch Bubble Disk: $3.75 Each
Coral Air: $2.45 Each
Coral Air & Bubble Shell:
Coral air is a air stone coral shaped. Bubble shell is in the shape of a shell very similar to the disks.
Bubble Shell: $2.45 Each
For Photo:
LEE'S DISCARD-A-STONE AIR DIFFUSERS:
Disposable Discard-A-Stone air diffusers with reusable inserts for attaching airline. Excellent aeration device for use in under gravel filters, corner filters, or just as decorations.
FOR PHOTO:
DISCARD-A-STONE COARSE: $2.69 EACH (6 PACK)
DISCARD-A-STONE FINE: $2.69 EACH (6 PACK)
DISCARD-A-STONE SLIM: $2.69 EACH (6 PACK)
Hagen Elite Air Stones:
These come in 5 useful shapes and sizes for all your applications.