Free Shipping for orders over $150 (excludes large bulky items) - Fast Shipping - Over 500 Google 5 Star Reviews

Top suggestions

What's new Everyday Low Prices This Month's Special Reduce to Clear - Big Savings

Brands #1

ADA Aqua Design Amano
Aqua Medic
Aqua One
Aqua Pics
Aquael
Aquaforest
Australian Black Worms

Brands #2

Continuum Aquatics
Deltec
Dr Tim's Aquatics
Eheim
Hikari
MarinePure
New Life Spectrum

Brands #3

Ocean Nutrition
Seachem
Sera
Two Little Fishies
Vitalis
Waterbox Aquariums

Equipment #1

Aquariums
Aquarium Stands & Cabinets
Reptile Terrariums & Enclosures
Lighting
Light Mounts
Canister Filters
Hang On Filters
Internal Filters
Filter Media
Canister Filter - Media and Spare Parts
Hang On Filters - Media and Spare Parts
Internal Filters - Media and Spare Parts
Sponge and Sock Filters
Underground Filters

Equipment #2

Air Pumps
Air Pump Diaphragms and Spare Parts
Airline Tubing and Accessories
Heaters
CO2 equipment
Dosing Pumps
Wavemakers
Submersible Water Pumps
Auto Top Off ATO Units

Equipment #3

Automated Aquarium Controllers
Water Chillers & Cooling Fans
Reverse Osmosis RO
Reactors and Fluidbeds
Protein Skimmers
Electronic Meters and Refractometers

Equipment #4

Ponds
Pond Filters
Pond Lights
Pond Water Pumps
Pond Air Pumps
Pond UV Sterilisers
Pond Water Conditioners
Pond Water Treatments
Pond Accessories

Fish Food #1

API Fish Food
Aqua One Fish Food
Aqua-Pics Food
AquaForest Fish Food
Australian Black Worms
Betapet Food
Bioscape Fish Food
Dainichi Fish Food

Fish Food #2

Fluval Fish Food
Hikari
New Life Spectrum
Northfin Fish Food
Nutrafin
Ocean Free Fish Foods
Ocean Nutrition

Fish Food #3

Polyp Lab Food
Saikoh Goldfish Koi Pellets
Seachem Food
Sera
Shrimp King
Tetra Fish Food
Tropical
Vitalis

Fish Food #4

Catfish Food
Cichlid Food
Marine Fish and Coral Food
Goldfish Food
Artemia/Brine Shrimp
Frozen Food

Betapet 500g Tropical Flake Fish Food

Betapet 500g Tropical Flake Fish Food

$46.95 AUD

SHOP NOW

Browse for new arrivals on Fish food

Water Treatments & Accessories

Water Treatments and Accessories #1

API Test Kits
Aquasonic Test Kits
Aquaforest Test Kits
Calibration Fluids
Fluval Test Kits
Hanna Test Kits
NYOS Test Kits
Red Sea Test Kits
Salifert Test Kits
Seachem Test Kits
Sera Test Kits

Water Treatments and Accessories #2

Freshwater Medications
Water Conditioners
Water Dechlorinators
Aquariums Start Up / Cycling
Bacteria Start Ups
Aquarium Salts
Ph Adjusters
Black Water - Breeding
IAL (Indian Almond Leaves)
Bio Media
Reactor Media

Water Treatments and Accessories #3

Algae Remover / Killer
Algaecides
Algae Phosphate Stop
Magnets / Scrubbers
Snail Eliminators

Water Treatments and Accessories #4

Aquascape Items
Gravels / Sands /Soils
Driftwood
Decorative Rocks
Artificial Plants
Backgrounds
Plant Products
Plant Fertilisers
Thermometers / Hydrometers
Auto Fish Feeders
Aquarium Cameras
Gravel Cleaners
Fish Nets
Ornaments

Water Treatments and Accessories #5

Marine Medications
Marine Treatments
Coral Fragging Products
Miscellaneous Products

Live Plants All Live Fish

Freshwater Fish

African Cichlids
American Cichlids
Angelfish
Australian Natives/Rainbows
Barbs
Bettas
Catfish
Corydoras
Danios
Discus
Goldfish
Gourami
Killifish
Livebearers
Loaches
L-Number Catfish
Miscellaneous
Rasboras
Shark
Shrimp
Snails
Tetras

Angelfish
Anthias
Blenny
Butterfly
Chromis
Clownfish
Dartfish
Goby
Hawkfish
Miscellaneous
Pufferfish
Tang
Triggerfish
Wrasse
Corals
Inverts

Reptile & Amphibian Items

Reptile and Amphibian Items #1

Reptile Terrariums & Enclosures
Equipment
Lights/Bulbs/Lamps
Domes
Heat mats
Water Treatments
Thermostats/Hygrometers
Foggers
Incubators

Reptile and Amphibian Items #2

Accessories
Artificial Plants
Backgrounds
Driftwood
Hammocks/Docks
Hides/Caves
Ornaments
Sand/Stones/Moss

Reptile and Amphibian Items #3

Reptile & Amphibian Food
Frog Food
Lizard Food
Snake Food
Turtle Food
Supplements

Eco Tech Advanced Reptile Thermostat - Dimming - Dual Electronic Thermostat.

Eco Tech Advanced Reptile Thermostat - Dimming - Dual Electronic Thermostat.

$159.00 AUD

Specials
Brands
Equipment
Fish Food
Water Treatments & Accessories
Fish & Plants
- Live Plants
- All Live Fish
- Freshwater Fish
  - African Cichlids
  - American Cichlids
  - Angelfish
  - Australian Natives/Rainbows
  - Barbs
  - Bettas
  - Catfish
  - Corydoras
  - Danios
  - Discus
  - Goldfish
  - Gourami
  - Killifish
  - Livebearers
  - Loaches
  - L-Number Catfish
  - Miscellaneous
  - Rasboras
  - Shark
  - Shrimp
  - Snails
  - Tetras
- Marine Fish
  - Angelfish
  - Anthias
  - Blenny
  - Butterfly
  - Chromis
  - Clownfish
  - Dartfish
  - Goby
  - Hawkfish
  - Miscellaneous
  - Pufferfish
  - Tang
  - Triggerfish
  - Wrasse
  - Corals
  - Inverts
Reptile & Amphibian Items

Water Treatments and Accessories #1

API Test Kits
Aquasonic Test Kits
Aquaforest Test Kits
Calibration Fluids
Fluval Test Kits
Hanna Test Kits
NYOS Test Kits
Red Sea Test Kits
Salifert Test Kits
Seachem Test Kits
Sera Test Kits

Water Treatments and Accessories #2

Freshwater Medications
Water Conditioners
Water Dechlorinators
Aquariums Start Up / Cycling
Bacteria Start Ups
Aquarium Salts
Ph Adjusters
Black Water - Breeding
IAL (Indian Almond Leaves)
Bio Media
Reactor Media

Water Treatments and Accessories #3

Algae Remover / Killer
Algaecides
Algae Phosphate Stop
Magnets / Scrubbers
Snail Eliminators

Water Treatments and Accessories #4

Aquascape Items
Gravels / Sands /Soils
Driftwood
Decorative Rocks
Artificial Plants
Backgrounds
Plant Products
Plant Fertilisers
Thermometers / Hydrometers
Auto Fish Feeders
Aquarium Cameras
Gravel Cleaners
Fish Nets
Ornaments

Water Treatments and Accessories #5

Marine Medications
Marine Treatments
Coral Fragging Products
Miscellaneous Products

Equipment #1

Aquariums
Aquarium Stands & Cabinets
Reptile Terrariums & Enclosures
Lighting
Light Mounts
Canister Filters
Hang On Filters
Internal Filters
Filter Media
Canister Filter - Media and Spare Parts
Hang On Filters - Media and Spare Parts
Internal Filters - Media and Spare Parts
Sponge and Sock Filters
Underground Filters

Equipment #2

Air Pumps
Air Pump Diaphragms and Spare Parts
Airline Tubing and Accessories
Heaters
CO2 equipment
Dosing Pumps
Wavemakers
Submersible Water Pumps
Auto Top Off ATO Units

Equipment #3

Automated Aquarium Controllers
Water Chillers & Cooling Fans
Reverse Osmosis RO
Reactors and Fluidbeds
Protein Skimmers
Electronic Meters and Refractometers

Equipment #4

Ponds
Pond Filters
Pond Lights
Pond Water Pumps
Pond Air Pumps
Pond UV Sterilisers
Pond Water Conditioners
Pond Water Treatments
Pond Accessories

Reptile and Amphibian Items #1

Reptile Terrariums & Enclosures
Equipment
Lights/Bulbs/Lamps
Domes
Heat mats
Water Treatments
Thermostats/Hygrometers
Foggers
Incubators

Reptile and Amphibian Items #2

Accessories
Artificial Plants
Backgrounds
Driftwood
Hammocks/Docks
Hides/Caves
Ornaments
Sand/Stones/Moss

Reptile and Amphibian Items #3

Reptile & Amphibian Food
Frog Food
Lizard Food
Snake Food
Turtle Food
Supplements

Eco Tech Advanced Reptile Thermostat - Dimming - Dual Electronic Thermostat.

Eco Tech Advanced Reptile Thermostat - Dimming - Dual Electronic Thermostat.

$159.00 AUD

Fish Food #1

API Fish Food
Aqua One Fish Food
Aqua-Pics Food
AquaForest Fish Food
Australian Black Worms
Betapet Food
Bioscape Fish Food
Dainichi Fish Food

Fish Food #2

Fluval Fish Food
Hikari
New Life Spectrum
Northfin Fish Food
Nutrafin
Ocean Free Fish Foods
Ocean Nutrition

Fish Food #3

Polyp Lab Food
Saikoh Goldfish Koi Pellets
Seachem Food
Sera
Shrimp King
Tetra Fish Food
Tropical
Vitalis

Fish Food #4

Catfish Food
Cichlid Food
Marine Fish and Coral Food
Goldfish Food
Artemia/Brine Shrimp
Frozen Food

Betapet 500g Tropical Flake Fish Food

Betapet 500g Tropical Flake Fish Food

$46.95 AUD

SHOP NOW

Browse for new arrivals on Fish food

Brands #1

ADA Aqua Design Amano
Aqua Medic
Aqua One
Aqua Pics
Aquael
Aquaforest
Australian Black Worms

Brands #2

Continuum Aquatics
Deltec
Dr Tim's Aquatics
Eheim
Hikari
MarinePure
New Life Spectrum

Brands #3

Ocean Nutrition
Seachem
Sera
Two Little Fishies
Vitalis
Waterbox Aquariums

Home
All
Bioscape Replacement Diaphragm for 500/1000 - Pack of 2

Bioscape Replacement Diaphragm for 500/1000 - Pack of 2

BIS50A

Bioscape Replacement Diaphragm for 500/1000 - Pack of 2

$7.95 AUD

7 items left

Qty

Pickup available at The Tech Den

Usually ready in 1 hour

Description:
Reviews

Description:

When your air pump is not pumping out the amount of air it should then it is generally just a need to change a diaphragm.

Specifications

Pack of 2

Suits 500/1000

Reviews

Write Review

Product Reviews

Questions

- No reviews collected for this product yet -

Be the first to write a review

New content loaded

Frequently bought together

Free Shipping over $150

FAQs

Visit our store

Join our Rewards Club

Customer Service

Returns/Warranty Claims & Enquiries
Contact Us
Shipping
Privacy Policy
Terms & Conditions
About Zip

More Information

About Us
Blogs
Refund policy
Terms of Service
The Tech Den Rewards Club
Aquarium Volume Calculator
Direct Supplier/Product Support

Our Shop

Address: 24 Alta Road, Caboolture

Phone: 07 5432 3260

Hours: Mon-Fri: 10am-5pm

Saturday: 10am-2pm

Sunday: 10am-2pm

Closed Most Public Holidays

ABN: 49 734 966 403

© 2025 The Tech Den.

Built by The Hope Factory

Search

What are you looking for?

Top suggestions

What are you looking for?

Top suggestions