ISTA External CO2 Ceramic Reactor

CHARACTERISTICS

• External design, save space and keep the tank neat.
• Easy assembling to connect with canister filter.
• With high quality of ceramic diffusing tube, assures the best diffusing effect.
• With transparent chamber, visible to check water flow and speed of CO2 diffusing through internal impeller.
• Assembling design for cleaning and replacing ceramic easily.

Specifications

Type: external in-line CO₂ reactor with ceramic diffusion tube

Fits: external and canister filters

Position: about 20 cm from the filter outlet connection

Impeller: patented design, holds the gas in contact with the water for longer to raise the dissolution rate

Chamber: transparent, so flow can be checked at a glance

Serviceable parts: ceramic tube and impeller, both replaceable

Setup & Use

It plumbs in-line on the outlet side of a canister or external filter. Connect the reactor to the filter and to the CO₂ supply the way round the arrows show, and fit it about 20 cm downstream of the filter outlet.

The clear chamber lets you watch the impeller: if it is turning, water is flowing. The ceramic tube and impeller both come out for cleaning and replacement.

Freshness & Storage

Every batch we dispatch carries a minimum of 6 months’ remaining shelf life. Store this product in a cool, dry place away from direct sunlight, with the cap or inner foil closed tightly after each use.

Filter media and substrates carry no manufacturing or expiry date — their working life begins on first contact with water, not on the shelf.

Returns & Replacement

Returns are accepted within 7 days of delivery, provided the item is unused and in its original packaging. Manufacturer-sealed items cannot be returned once the seal is broken, and sale-priced items are not refundable.

If your item arrives defective or damaged, message us on WhatsApp with your order number, or email us if you would rather, and we will replace it. Approved replacements are delivered within 3 to 5 business days. Transit damage is covered by insurance on every shipment. If tracking shows delivered but nothing reached you, tell us within 72 hours, which is the reporting window Indian couriers allow. Damage caused during installation or use is not covered; replacement spares for such cases are chargeable.

Full terms are on our Cancellation & Returns page.