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Sponge Filters

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H-0

H-I

H-II

H-III

H-IV

H-V

Sponge filters are indispensable for any hobbyist or breeder. These dense foam sponges can harbor incredible quantities of beneficial nitrifying bacteria. Use them anywhere you keep fish, one or two in small aquariums or multiples in larger tanks. Always keep extras going in your tanks, to speed up the cycling of new aquariums just by moving a mature sponge. An inexpensive remedy for overcrowding or inadequate filtration may be as simple as adding 1 or 2 Hydro-Sponges!
Additional quantity discounts available.
PARTS AVAILABLE as well as stackable units and pre-filter sponges only. See listing towards bottom of page

BULK Filter Foam available for making your own sponge filters or Matten Style Filters

NEW BASE DESIGN:
ATI Hydro-Sponge Filters now ship with this style weighted base.

ATINewBase1-200p

ATI Hydro-Sponge Filters: Air driven filters for just about any size aquarium.

Combine any 6 Hydro-Sponge complete filters below to receive quantity discount

Item #

Description (size)

Price

Qty 6

 

All short Hydro-Sponges (0,I,VM) fitted with proper short length lift tubes.
H-0, H-I & H-VM fit in 20 gallon long, 10 gallon and smaller aquariums with lift tube submersed.

H-0

Hydro #0 (2 3/4” dia x 2” high sponge section)
fits x-small tanks
 3 1/2” Overall height w/ lift tube

$7.56

$6.81

 

H-I

Hydro-Sponge #1 (3 3/4” dia. x 2” high sponge)
7 1/2” Overall height w/ lift tube

$7.75

$7.06

 

H-II

Hydro-Sponge #2 (2 3/4” dia. x 4” high sponge)
11” overall height w/ lift tube

$8.40

$7.44

 

H-III

Hydro-Sponge #3 (3 3/4” dia. x 4” high sponge)
11” overall height w /lift tube

$9.75

$8.38

 

H-IV

Hydro-Sponge #4 (4 3/4” dia. x 4” high sponge)
11” overall height w/ lift tube

$11.25

$9.81

 

H-V

Hydro-Sponge #5 (5 3/4” dia. x 4” high sponge)
11” overall height w/ lift tube

$12.50

$10.75

 

Hydro-Sponge Pro Series - Coarse foam Sponge Filters

Hydro-Sponge PRO Series

Item #

Description (size)

Price

Qty 6

 

H-IP

Hydro-Sponge Pro #1
(3 3/4” dia. x 2” high sponge)
7 1/2” Overall height w/ lift tube

$9.78

$9.25

 

H-IIP

Hydro-Sponge Pro #2
(2 3/4” dia. x 4” high sponge)
11” overall height w/ lift tube

$12.38

$10.63

 

H-IIIP

Hydro-Sponge Pro #3
(3 3/4” dia. x 4” high sponge)
11” overall height w /lift tube

$12.81

$10.94

 

H-IVP

Hydro-Sponge Pro #4,
(4 3/4” dia. x 4” high sponge)
11” overall height w/ lift tube

$13.56

$11.81

 

H-P

Hydro-Sponge Pro #5
(5 3/4” dia. x 4” high sponge)
11” overall height w/ lift tube
formerly Hydro-Pond I

$15.50

$13.69

 

Stackable Hydro-Sponges - add-on to your existing complete filter
standard fine pored sponge

HS-IIIS

Hydro-Sponge #3 Stackable
(add to H-III to get stack of 2)

$7.09

$6.31

 

HS-IVS

Hydro IV Sponge Stackable
(add to H-IV to get stack)

$8.13

$7.09

 

HS-VS

Hydro V Sponge Stackable
(add to Hydro V to get stack)

$8.90

$7.99

 

Stackable Hydro-PRO-Sponges - add-on to existing complete filter
Pro Series - coarse pored sponge

HS-IIIPS

Hydro-Sponge #3 PRO Stackable

$8.45

$7.74

 

HS-IVPS

Hydro-Sponge #4 PRO Stackable

$9.75

$9.10

 

HS-P-STK

Hydro-Sponge #5 PRO Stackable

$11.05

$10.70

 

CLICK here for Airstones for use in Hydro-Sponges

Pancake style sponges for fry feeding and hiding.
Large surface area on these sponges give fry plenty of room to forage for food particles and microscopic organisms.

#H-VM

Hydro-V-Mini, (pancake style)
single base unit only

$9.95

#H-VMS

Hydro-V-Mini STACKABLE
Sponge and parts only to add 1 stacked sponge to an existing complete filter.
Image above triple requires one base unit and two stacks.

$6.31
per layer

IMPORT Sponge Filters:
Air Driven Sponge filters similar design as ATI brand Hydro-Sponge filters above. All fine style sponge porostiy. Parts not interchangeable with ATI brand.

AQHS10

AQHS10-200p

Mini Sponge filter similar to H-0
use in small critter keeper or up to 5 gallon aquariums
~ 2” dia x 1 7/8”  h sponge
overall height with lift tube 4 3/4”

$3.60

AQHS20

AQHS20-200p

Sponge filter similar to H-II
use in smaller aquariums
~ 2” dia x 3 1/4” h sponge
overall height with lift tube 6 1/4”

$4.50

AQHS30

AQHS30-200p

Sponge filter similar to H-I
use in smaller aquariums
~ 3 1/4” dia x 2” h sponge
overall height with lift tube 6 1/4”

$5.40

AQHS40

AQHS40-200p

Sponge filter similar to H-III
use in medium aquariums such as 20, 30 & 40g
~ 3 1/4” dia x 4” h sponge
overall height with lift tube 8 1/4”

$6.30

AQHS60

AQHS60-200p

use in more heavily stocked small to mid size aquariums such as 20 & 30 longs
~ 4 1/2” dia x 2” h sponge
overall height with lift tube 6 1/4”

$6.75

AQHS90

AQHS90-200p

Sponge filter similar to H-IV
use in medium to larger aquariums
~ 4 1/2” dia x 4” h sponge
overall height with lift tube 8 1/4”

$7.65

Wall mount air driven single sponge filter

EHWAF1

EHWAF1Airfilter-200p

Suction cup mounted sponge filter. various adapters and tubes for adjusting configuration
surface discharge

$11.56

Hydro-Flo-Sponge:

Sponge Filter specially fitted with a miniature water pump
Use fine sponge filter for polishing water or in small aquariums can replace air driven style to eliminate bubble noise or when desired for gentle water movement such as planted tanks.
Use coarse sponge to provide longer service life between cleanings or when higher flow rates are desired. Coarse foam sponge works well as mechanical filtration as well as biological.
Mini pump sits attached to top of lift tube allowing flow to be directed upwards for better turnover. Larger HSFP300D with 296 gph pump for high turnover heavily populated aquariums or Horizontal versions for larger tanks/troughs/sumps.

HS-FP0C030

HS-FP0C-1-150

Hydro-Flo mini Sponge Filter,
single #0 coarse sponge
2 3/4” dia x 2” high sponge
w/ 30 gph pump
Useful for small nano or planted tanks where very limited flow rate is desired and limited biological capacity. horizontal outlet with slow water movement to direct nutrients throughout tank limiting surface agitation for minimal gas exchange.

$18.00

HS-FP2C030H

HS-FP2C030H-150p

Hydro-Flo mini Sponge Filter,
single #2 coarse sponge
2 3/4” dia x 4” high sponge
w/ 30 gph pump
Same as above but using 4” high sponge

$22.00

HS-FP4C100X

 

Hydro-Flo Sponge Filter,
single #4 coarse sponge
w/ 100+ gph pump

$27.95

HS-FP4C200

HS-FP4C200c-100p

Hydro-Flo Sponge Filter,
single #4 coarse sponge
w/ 200 gph pump
pump outlet horizontal

$25.75

HS-FP5C100X

 

Hydro-Flo Sponge Filter,
single #5 coarse sponge
w/ 100+ gph pump

$33.90

HS-FP5C200

HS-FP4C200c-100p

Hydro-Flo Sponge Filter,
single #5 coarse sponge
w/ 200 gph pump
pump outlet horizontal

$28.50

HS-FP300D

HS-FP300DFBS-100p

Hydro-Flo Sponge Filter
DOUBLE HEIGHT SPONGE
w/ Quiet One 1200, 296 gph powerhead
Includes outlet elbow and Flexible Ball Socket joint tubing and nozzle for adjustable flow direction.

Provides large filtration capacity:
over 200 cu. inches of biological/filter area. More than most hang on back filters! Combined with high volume water pump and no head loss from suction tube will provide more turnover than many filters advertising higher gallons per hour.

$59.95

HS-FPH350T

HS-FPH325Tb-150p

Hydro-Flo Triple Horizontal filter
350 Gallon per Hour
Mounts horizontal on bottom of aquarium or in sump, Ball/Socket fitting outlet to direct flow
Uses our PFP pipe for secure mounting of inlet sponges and extra outboard foot support

$55.95

HS-FPH600Q

 

Hydro-Flo QUAD Horizontal filter
600 Gallon per Hour
Mounts horizontal on bottom of aquarium or in sump, Ball/Socket fitting outlet to direct flow
Uses our PFP pipe for secure mounting of inlet sponges and extra outboard foot support

$69.95

Hydro-Sponge Pre-Filters:



Coarse Foam Sponge for use as pre-filters on intakes of Water Pump intakes, Power Filters, Cannister Filters, Wet-Dry intakes, Bulkhead fitting intakes or anywhere particulate needs to be screened or intakes diffused to prevent small fish or fry from entering intake tubes. Higher flow rate intakes generally require larger sponges with greater surface area to prevent suction effect of intake. Either use a PVC “Tee” inlet with multiple small sponges or 1 larger sponge when this is a concern. Filter-Max III come with multi size adapters for various intake tubes of commercial aquarium filters such as Power Filters etc. These Filter Max do not have adapters for PVC pipe sizes. For adapting sponges to PVC use any of the other pre-filters which are made to fit on common schedule 40 PVC pipe fittings. The “HS -PF90” style shown above have a right angle elbow and all clear fittings. Pre-filters with “mini” sponges are half the regular length sponge and are usually adequate for up to 200 gallons per hour flow rates. For highest flow rates use extra large Hydro-Pond style Sponges #HS-PIII & #HS-PIV (same size sponge as Hydro V filters but in a coarse foam)

Item #

 

Description

Price

HS-PF-FM3

Filter Max III Pre-filter complete with multiple adapters and 2 elbows for adjusting away from tank wall.
Fitted with coarse Pro Series sponge
2 3/4” dia x 4” long

$8.90

HS-PF-FM2

 

Filter Max II Pre-filter complete with multiple adapters and 2 elbows for adjusting away from tank wall
Fitted with standard fine pored sponge
2 3/4” dia x 4” long sponge

$7.70

HS-PF-FM1

 

Filter Max I Pre-filter complete with multiple adapters and 2 elbows for adjusting away from tank wall
Fitted with standard fine pored sponge.
2 3/4” dia x 2” long sponge

$6.40

HS-PF90M3/4

HS-PFM90t

Pre-Filter w/ 90 degree elbow and Mini size sponge, 3/4” male PVC adptr.

$7.48

HS-PF903/4

HS-PF9034t

Pre-Filter w/ 90degree elbow and regular size sponge, 3/4” male PVC adptr.

$9.10

HS-PF90M1/2

HS-PFM90t

Pre-Filter w/ 90 degree elbow and Mini size sponge
1/2” male PVC adptr.

$6.83

HS-PF90A1/2

HS-PF9034t

Pre-Filter w/ 90degree elbow and regular size sponge,
1/2” male PVC adptr.

$6.29

 

 

 

 

HS-PFM1/2A

Pre-Filter w/ Mini Sponge and 1/2” straight PVC adptr.

$6.50

 

 

 

 

HS-PF1/2A

HS-PFPVCtxt1

Pre-Filter w/ regular sponge and 1/2” straight PVC adptr.

$8.06

HS-PF3/4A

Pre-Filter w/ regular sponge and 3/4” straight PVC adptr.

$8.06

HS-PIII

Hydro-Pond 3 Sponge Filter - Water pump driven

Hydro-Pond Sponge #3
Water Pump driven style
multiple adapters for various pump intakes, 2 elbows for offset, and single coarse foam Hydro Pond sponge.
(4” long  x 5 3/4” dia. coarse sponge)

$13.50

HS-PIV

Hydro-Pond 4 Sponge Filter - Water pump driven

Hydro-Pond #4
Water pump driven style
 (2) Hydro-Pond Sponges
Multiple adapters for various pump intakes, 2 elbows for offset, and 2 coarse foam Hydro Pond sponges.
(8” long x 5 3/4” dia coarse sponge)

$16.50

Large Pre-filter Stacks for overflows.
Use on pre-filter overflow boxes or directly on pump intakes on submersible pumps or thread into bulkhead fittings on sump. We can also provide different custom size adapters to fit your needs.

PFS110

CLICK TO ENLARGE

Prefilter Sponge only
Coarse Sponge sleeve for pre-filter use
will fit on screen tube PFP144 below
1” ID core x 3 1/2” OD x 10” long

$6.00

Pre-filter screen tubes for custom pump intakes or overflow stacks
Provides a more secure method of attaching sponges to pump intakes, no parts to fall apart.

PFP108 and PFP-244 series will fit directly into PVC socket fittings (not glued). Simplifies pre-filter installation using standard PVC fittings.Leave open screenin without sponge for a screened pump intake or even use as bulkhead fitting intake screen, with or w/o a sponge. Use PFS-110 sponges or Hydro-Pro series replacement sponges for prefilter.

FP-144 and PFP-244 series PVC pipe fits snugly inside providing a myriad of uses as pre-filter screens or for wrapping with blue bonded sheet or filter felt sponges. 1” size fits PFS-110 sponge or Hydro-Sponge replacement sponges. Provides a more secure method of attaching sponges to pump intakes, no parts to fall apart. Generally parts are not glued, however PVC elbows and pipe can be glued for a permanent installation.
 

We can supply complete assemblies as shown below or to your dimensions as required. Please inquire.

Use as single intake for pumps up to 1000 gph

Use as dual intake for pumps 1000 gph and larger

 

 

PFP144_PVCsponge_100p

PFP_PVCSponge_150p

 

 

 

 

 

 

PFP-115105W

PFP108115-150pwm

1” screen pre-filter pipe
x 10 1/2” long
fits into female PVC socket fittings for simple installation of prefilter
use PFS-110 sponge or Hydro-Pro series sponges

OUT

PFP-115425W

PFP115425-150pwm

1” screen pre-filter pipe
 x 42 1/2” long
fits into female PVC socket fittings for simple installation of prefilter - use PFS-110 sponge or Hydro-Pro series sponges

OUT

PFP-10830W

PFP115425-150pwm

1” screen pre-filter pipe
 x 30” long
rigid heavy wall thickness
fits into female PVC socket fittings for simple installation of prefilter - use PFS-110 sponge or Hydro-Pro series sponges

$7.00

PFP-108CAP

PFP144CAP006-100p

End Cap for above PFP115 series screen pipe
fits inside screen pipe
eliminates the need to use PVC slip cap

$0.77

PFP-125SC

PFP125SC-150p

End Cap for above prefilter pipe
fits #PFP-115115W & PFP115425W
soft cap fits over end of pipe

$0.49

PFP-144

PFP144-150p

1” pipe size screen tube x 44” long
fits snugly over 1” PVC pipe
 Schedule 40 or Schedule 80

OUT

PFP-144CAP

PFP144CAP006-100p

End Cap for above PFP 144 screen pipe - fits inside
eliminates the need to use short piece of PVC pipe and PVC slip cap

$0.45

PFP-150-42W

 

1 1/2” pipe size screen tube x 42”
fits snugly in 1 1/2” PVC socket fittings (female fittings) S40 & S80

 

PFP-150CAP

PFP144CAP006-100p

1.5” end cap plug for above
 PFP-150-42W

$1.10

PFP-244W

 

2” pipe size screen tube x 44” long
fits loosely into 2” PVC pipe socket fittings (female fittings)
S40 & S80
(use silicone glue or a thin sleeve
for better fit)

pipe also fits over sponges #H-0, #H-II
and Filtermax 3 #HS-PF-FM3 sponges to prevent fish such as plecos, eating sponge

$22.00

PFP-244CAP

PFP144CAP006-100p

2” end cap/plug for above
 PFP-244W

$1.40

ATI Hydro-Sponge Replacement Sponges & Parts

H-0R

 

Hydro-0 Replacement Sponge

$1.73

H-0PR

 

Hydro-0 PRO Replacement Sponge

$2.25

H-IR

 

Hydro-1 Replacement Sponge

$1.79

H-IPR

 

Hydro-1 PRO (coarse) Replacement Sponge

$2.90

H-IIR

 

Hydro-2 Replacement Sponge

$2.36

H-PSR

 

Hydro-2 PRO (coarse) Replacement Sponge

$2.55

H-IIIR

 

Hydro-3 Replacement Sponge

$2.73

H-IIIPR

 

Hydro-3 PRO (coarse) Replacement Sponge

$3.99

H-IVR

 

Hydro-4 Replacement Sponge

$3.28

H-IVPR

 

Hydro-4 PRO (coarse) Replacement Sponge

$5.94

H-VR

 

Hydro-5 Replcement Sponge

$3.98

H-PR

 

Hydro-5 PRO (HydroPond Replacement Sponge Coarse Sponge)

$8.13

H-VMR

 

Hydro V Mini (Pancake Sponge) Replacemnet Sponge

$2.45

Hydro-Sponge Parts (listed in order of assembly - from bottom up) more parts available - call

HS-BASE

Hydro-Sponge BASE

Weighted Base for Hydro-Sponge air driven filter

$3.51

HS-A

Hydro-Sponge STEP

Adapter or Step (riser spacer)

$1.48

HS-FS

Hydro-Sponge FEMALE STRAINER

Female Strainer - grid with flange which holds sponge
 use this one singly for H-0 or H-I or H-VM

$1.55

HS-MS

Hydro-Sponge MALE STRAINER

Male Strainer - grid with flange which holds sponge
 mating piece with HS-FS

$1.55

HS-B

Hydro-Sponge BULLSEYE

Bullseye connector - attaches to flange side of either strainer HS-MS or HS-FS - where airline tubing connects to - has 3 spokes

$1.76

HS-LT-20PK

 

20 pack - Lift tube std length 5” - clear plastic rigid tube ~ 1” diameter connects to bullseye connector
-- REPLACE OLD DISCOLORED LIFT TUBES --

$14.00

HS-LT

Hydro-Sponge LIFT TUBES -ALL

Lift tube - clear plastic rigid tube ~ 1” diameter connects to bullseye connector
5” long lift tube

$0.76

HS-LT1

 

Lift tube - same as above but shorter length for H-I to allow H-I to be used in shallow tanks such as 10 gallon and smaller
~ 3 1/2” long lift tube

$0.76

HS-LTM

 

Lift tube for H-0 and HS-VMS- shorter lift tube for smaller tanks such as plastic holding tanks, bowls, etc.
~ 1 1/2“ long lift tube

$0.49

HS-LT8

 

8” Long Lift Tube for ATI Hydro-Sponge Filters

$0.86

BULK Reticulated Filter FoamFF-PB012524a150p
Foam sheet to make home-made sponge filters and Matten style in-tank filters
1/2 and 1/4 sheets available - CALL (cut charge may apply)

COARSE 15 PPI

FFR15P2X1SM

 

39” x 39” x 2” thick, coarse

$70.00

FFR15P4X1SM

 

39” x 39” x 4” thick, coarse

$140.00

MEDIUM 30 PPI

FFR30P2X1SM

 

39” x 39” x 2” thick, MEDIUM

$70.00

FFR30P4X1SM

 

39” x 39” x 4” thick, MEDIUM

$140.00

FINE 40 PPI

FFR40P2X1SM

 

39” x 39” x 2” thick, FINE

$70.00

FFR40P4X1SM

 

39” x 39” x 4” thick, FINE

$140.00

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